View source for Wikidata:Glossary/my

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[[{{LM|Datamodel in Wikidata|svg}}|thumb|center|730px|<div class="center">အကြောင်းအရာ [[Q42]] မှ ထုတ်ပြန်ချက်တစ်ခု၏ အစိတ်အပိုင်းများ</div>]]
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This glossary defines important Wikidata concepts and refers to more detailed information. See [[Special:MyLanguage/Wikidata:Introduction|Wikidata:Introduction]] for a general introduction into Wikidata and the [[Wikidata:Glossary/Guidelines|glossary guidelines]] for how to write and improve glossary entries.
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! style="background-color: #eaecf0" | <span lang="en" dir="ltr" class="mw-content-ltr">Glossary</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Alias}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Alias''' is an alternative name for an [[#Item|item]] or a [[#Property|property]]. In the user interface, it is sometimes labeled as "{{int|Wikibase-entitytermsforlanguagelistview-aliases}}". The usual or most important name is the [[#Label|label]]. Aliases help people find an item even if they don’t search with the label. For example, the item [[Q2]] has the label “Earth” and aliases such as “Tellus” and “Blue Planet”. It's a type of [[#Term|term]].</span> {{see|Help:Aliases}}
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| style="border-bottom: 1px dotted black" | {{anchor|Article placeholder}} {{anchor|Placeholder}}<section begin=placeholder/> <span lang="en" dir="ltr" class="mw-content-ltr">'''Article placeholder''' is an extension to display stub articles and to start Wikipedia articles based on a [[#View|view]] of Wikidata items. See [[mw:Extension:ArticlePlaceholder]].</span><section end=placeholder />
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| style="border-bottom: 1px dotted black" | {{anchor|Badge}}{{anchor|Badges}} <span lang="en" dir="ltr" class="mw-content-ltr">A '''badge''' is an optional marker that can be attached to a [[#Sitelink|sitelink]] to another Wikimedia page. For instance, a sitelink can be marked to link to a "featured article" or to a "proofread" page.</span> {{see|Help:Badges}}
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| style="border-bottom: 1px dotted black" | {{anchor|Category}}{{anchor|Template}}{{anchor|Module}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Category item''', '''template item''' and '''module item''' are Wikidata items with [[#Sitelink|sitelinks]] to categories, templates, or modules on Wikimedia sites. When the last sitelink is deleted, these items are generally deleted (see [[Wikidata:Database reports/to delete]]).</span><!-- included due to frequency, specifics of items and limited use -->
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| style="border-bottom: 1px dotted black" | {{anchor|Claim}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Claim''' is a piece of data about the [[#Entity|entity]] on the [[#Page|page]] where the claim appears. A claim consists of a [[#Property|property]] (such as {{label|P276|{{PAGELANGUAGE}}|link=wikidata}}) and either a [[#Values|value]] (e.g., {{label|Q183|{{PAGELANGUAGE}}|link=wikidata}}) or one of the special cases "{{int|wikibase-snakview-snaktypeselector-novalue}}" and "{{int|wikibase-snakview-snaktypeselector-somevalue}}". A claim can have [[#Qualifier|qualifiers]], such as temporal qualifiers saying that the claim is valid within a specific time frame. Compared to [[#Triple|triples]] in the RDF data model, a claim uses a property to express the predicate of a triple and a value to express the object of a triple. Claims form part of [[#Statement|statements]] on [[#Item|item]] pages, where they can be augmented with [[#Reference|references]] and [[#Rank|ranks]]. They can also occur on non-item data pages.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Commons}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Commons''' (or '''Wikimedia Commons''') is a Wikimedia project to store images, audio, video and other files. Wikibase includes three different [[#Datatype|datatypes]] to link from Wikidata to media files, geographic shapes and tabular data. Commons is adding statements to files as [[#Mediaentity|mediaentities]].</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Completeness}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Completeness''' is an assessment of available data with a measure for coverage. At Wikidata the presence of an item or statement does not imply that all similar items or statements are present. Wikibase does not include any completeness indicator. [[#Quantity|Quantity]] properties can be used to compare with available statements or items. Example: The item about states of the USA has a statement with quantity 50. One can compare that with the count of uses of the item. A few tools attempt to measure completeness. To some extent, [[#Property suggester|property suggester]] and [[#Suggestion constraint|suggestion constraints]] indicate elements missing to complete items.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Complex constraint}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Complex constraint''' (or '''custom constraint''') is a [[#Constraint|constraint]] defined by a freely chosen SPARQL query in a template on a property talk page.</span> {{see|Template:Complex constraint}}
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| style="border-bottom: 1px dotted black" | {{anchor|Conflation}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Conflation''' is a type of error, usually on an item, where aspects of several distinct concepts are mixed together. For example, an item with the date of birth of one person and the occupation of another person with the same name.</span> {{see|Help:Conflation}}
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| style="border-bottom: 1px dotted black" | {{anchor|Constraints}} {{anchor|Constraint}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Constraint''' is a rule for how a particular [[#Property|property]] should be used. For instance most identifiers should have only one value, so there is a [[Special:MyLanguage/Help:Property constraints portal/Single value|single value constraint]] on them. A special kind are called [[#Complex constraint|complex constraints]].</span>  {{see|Help:Constraints}}
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| style="border-bottom: 1px dotted black" | {{anchor|Constraint report}}{{anchor|Constraint reports}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Constraint report''' can refer to a series of periodically updated pages for each property based on [[#Constraints|constraints]] or a [[Special:ConstraintReport|special page]] for an individual item or other entity.</span> {{see|Wikidata:Database reports/Constraint violations}}
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| style="border-bottom: 1px dotted black" | {{anchor|Cradle}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Cradle''' is an [[#Edit|editing]] tool to create new Wikidata items based on a form with predefined [[#Property|properties]] and [[#Value|values]].</span> {{see|Wikidata:Cradle}}
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| style="border-bottom: 1px dotted black" | {{anchor|Datatype}}{{anchor|Datatypes}}{{anchor|propertyType}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Datatype''' (or '''propertyType''') is an attribute of a [[#Property|property]] specifying the type and shape of the [[#Value|value]] in each [[#Claim|claim]]. Each [[#Property|property]] is assigned a pre-defined datatype, which [[Help:Data type#Changing datatype|usually]] can not be changed. Not all values can be linked, as long as there are certain datatypes missing. Data types can only be defined by developers. See also [[Special:ListDatatypes]] for currently available datatypes. Data type does not directly specify how values are stored internally; this is specified by [[#Value type|value type]].</span> {{see|Help:Data type}}
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| style="border-bottom: 1px dotted black" | {{anchor|Data namespace}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Data namespaces''' are [[#Namespace|namespaces]] for [[#Page|pages]] that hold Wikidata entities. The data namespaces in Wikidata are the [[#Mainspace|main namespace]] for the Wikidata [[#Item|items]], "<span lang="en" dir="ltr">{{ns:120}}:</span>" for [[#Property|properties]], and "<span lang="en" dir="ltr">{{ns:146}}:</span>" for [[#Lexeme|lexemes]].</span> {{see|Help:Namespaces}}
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| style="border-bottom: 1px dotted black" | {{anchor|Date}}{{anchor|Dates}}{{anchor|Time}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Date''' (or '''time''' or '''timeValue''') is a [[#Datatype|datatype]] for property values. It allows to enter dates in different precisions and enables date calculations in queries. Hour or minute precision isn't supported. The [[Property:P571|Wikidata property for the date of foundation]] has such values.</span> {{see|Help:Dates}}
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| style="border-bottom: 1px dotted black" | {{anchor|Description}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Description''' is a language-specific descriptive phrase for an [[#Item|item]] or [[#Property|property]]. It provides context for the [[#Label|label]] (for example, there are many items about places with the label "[[Special:ItemDisambiguation/en/Cambridge|Cambridge]]"). The description therefore does not need to be unique, neither within a language or Wikidata in general, but it must be unique together with the [[#Label|label]]. Uniqueness for a combination of a label and a description is strictly enforced. If your edit does not meet this requirement you cannot publish it. It's a type of [[#Term|term]].</span> {{see|Help:Description}}
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| style="border-bottom: 1px dotted black" | {{anchor|Dab}}{{anchor|Disambiguation}}{{anchor|Disambiguation item}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Disambiguation item''' is a Wikidata item with [[#Sitelink|sitelinks]] to disambiguation pages. This is its only purpose. Generally, it has a claim with {{label|P31|{{PAGELANGUAGE}}|link=wikidata}}={{label|Q4167410|{{PAGELANGUAGE}}|link=wikidata}}.</span> <!-- included due to frequency, specifics of items and limited use --> {{see|Wikidata:WikiProject Disambiguation pages}}
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| style="border-bottom: 1px dotted black" | {{anchor|Dup}}{{anchor|Duplicate}}{{anchor|Merge}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Duplicate''' is an [[#Entity|entity]], generally an item, about the same concept as another entity. Duplicates are usually [[Special:MyLanguage/Help:Merge|merged]] creating a [[#Redirect|redirecting entity]]. Special types of duplicates are [[Q17362920|temporary duplicates]], [[Q21286738|permanent duplicates]], and [[Wikidata:True duplicates|true duplicates]].</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Editing interface}}{{anchor|Edit}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Editing interface''' is a [[#View|view]] that allows to add or modify data. These views are the default view, the Commons structured data interface, Wikidata bridge, and a series of API-based tools, notably [[#QuickStatements|QuickStatements]], [[#Cradle|Cradle]], PetScan, OpenRefine or the [[:mw:Special:MyLanguage/Manual:Pywikibot|Pywikibot]] framework.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Entity}}{{anchor|entity}}{{anchor|dataset}} <div lang="en" dir="ltr" class="mw-content-ltr">
'''Entity''' is the content of a Wikidata [[#Page|page]] in one of the [[#Data namespace|data namespaces]], such as an [[#Item|item]] (in the [[#Mainspace|main namespace]]), [[#Property|property]] (in the Property namespace) or [[#Lexeme|lexeme]] (in Lexeme namespace). Every entity is uniquely identified by an {{anchor|Entity-ID}}''entity ID'', which is a number with a prefix; for example, starting with the prefix <code>Q</code> for an item and <code>P</code> for a property. An entity is also identified by a unique combination of [[#Label|label]] and [[#Description|description]] in each language. An entity may have alternate [[#Alias|aliases]] in multiple languages (something similar to synonyms). Each entity has also a [[#DereferenceableURI|dereferenceable URI]] that follows the pattern <code><nowiki>http://www.wikidata.org/entity/</nowiki>''ID''</code> where ''ID'' is its entity ID.
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Other [[mw:Special:MyLanguage/Extension|extensions]] may define new types of entities. For example:
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* <span lang="en" dir="ltr" class="mw-content-ltr">[[#Lexeme|Lexeme]], [[#Form|Form]] and [[#Sense|Sense]], defined by [[mw:Special:MyLanguage/Extension:WikibaseLexeme|WikibaseLexeme]]</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">[[c:Special:MyLanguage/Commons:Structured data/Features glossary#MediaInfo|MediaInfo]], defined by [[mw:Special:MyLanguage/Extension:WikibaseMediaInfo|WikibaseMediaInfo]]</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Entity selector}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Entity selector''' allows picking an [[#Entity|entity]] by entering part of its name and selecting it from a list of search results. For items, the results are based on the labels and aliases. The [[#Description|description]] is displayed, if there is one. Example: type "human" to pick [[Q1156970]] from "human (Q5) common name of Homo sapiens", "humanity (Q1156970) total world population of human", etc. This is different from the [[#Property suggester|Property Suggester]].</span> {{see|Help:Suggesters and selectors}}
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| style="border-bottom: 1px dotted black" | {{anchor|EntitySchema}} <span lang="en" dir="ltr" class="mw-content-ltr">'''EntitySchema''' is a special type of Wikidata [[#Page|page]] containing a document in [[Q29377880|ShEx]] format, and related metadata. Although it may have labels, descriptions and aliases similar to items, it is ''not'' a type of [[#Entity|entity]]. Entities may be validated against an EntitySchema using the [[toolforge:shex-simple/wikidata/packages/shex-webapp/doc/shex-simple.html|ShEx2 — Simple Online Validator tool]].</span> {{see|Wikidata:Schemas}} {{see|Wikidata:WikiProject Schemas}}
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| style="border-bottom: 1px dotted black" | {{anchor|External_identifier}}{{anchor|external-ID}}{{anchor|External-ID}}{{anchor|external-id}} <span lang="en" dir="ltr" class="mw-content-ltr">'''External identifier''' is a type of property — a string used in the database of external organizations. Some properties have external identifiers as values. They ''uniquely identify'' an item, although the uniqueness is not enforced by software, but controlled by [[#Constraint|constraint]]. For example, an ISBN for a book or the unique part of the URL of a movie or an actor in the Internet Movie Database.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Federation}} {{anchor|Federation query}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Federation query''' is a [[#Query|query]] through a service available on [[#WQS|Query Server]] allowing to access databases other than Wikidata.</span> {{see|Wikidata:SPARQL federation input}}
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| style="border-bottom: 1px dotted black" | {{anchor|Form}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Form''' is a string of characters that occurs in a particular grammatical context for a [[#Lexeme|lexeme]]. Every Lexeme may have multiple forms. Forms are identified on each lexeme by the [[#LID|Lexeme ID]] followed by a dash, the letter "F" and a number. Forms may have statements just as other entities do. They are also assigned ''grammatical features'' such as "plural" for Form L1298-F2 ("forms"). A form is a type of an [[#Entity|entity]].</span> {{see|Wikidata:Lexicographical data/Glossary}}
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| style="border-bottom: 1px dotted black" | {{anchor|Historic information}}{{anchor|Historic_information}}{{anchor|Outdated}}{{anchor|History}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Historic information''' is included by qualifying it with a [[#Date|date]]. If information is no longer current, date qualifiers are added instead of statements overwritten. Historic information is different from [[#Incorrect|incorrect information]]</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Human}}{{anchor|Person}}{{anchor|Individual}}{{anchor|Q5}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Human''' (or '''instance of human''') is a Wikidata item about a person or an individual. It has a claim with {{label|P31|{{PAGELANGUAGE}}|link=wikidata}}={{label|Q5|{{PAGELANGUAGE}}|link=wikidata}}.</span> <!-- included due to frequency and stability of definition -->
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| style="border-bottom: 1px dotted black" | {{anchor|Incorrect information}}{{anchor|Incorrect_information}}{{anchor|Incorrect}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Incorrect information''' is a claim supported by a reference, but generally considered invalid or inaccurate. While Wikipedia generally excludes such information, Wikidata's deprecated [[#Rank|rank]] allows to flag such statements. This helps avoid a situation in which it's deleted and erroneously re-added as valid information. Incorrect information is different from [[#History|historic information]]</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Instance}}{{anchor|Class}}{{anchor|Subclass}}{{anchor|Type}}{{anchor|Part}}{{anchor|P31}}{{anchor|P279}}{{anchor|P527}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Instance of''', '''subclass of''', and '''has part''' (also '''class''' or '''type''') are used on Wikidata to refer to the properties {{label|P31|{{PAGELANGUAGE}}|link=wikidata}}, {{label|P279|{{PAGELANGUAGE}}|link=wikidata}}, {{label|P527|{{PAGELANGUAGE}}|link=wikidata}}, and a few other related ontological properties, their values, or items using them.</span>{{see|Help:Basic membership properties}}
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| style="border-bottom: 1px dotted black" | {{anchor|Item}}{{anchor|Items}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Item''' refers to a real-world object, concept, or event that is given an identifier in Wikidata together with information about it. Each item has a corresponding [[#Page|wiki page]] in the Wikidata [[#Mainspace|main namespace]]. That page's [[#Title|title]] is the item's unique prefixed [[#Entity-ID|id]], such as Q42. Every item may have human-readable [[#Label|labels]] and [[#Description|descriptions]] in multiple languages, but they are not necessarily unique. Items may also have [[#Alias|aliases]] to ease lookup. The main data part of an item is the list of [[#Statement|statements]] about the item. An item can be viewed as the subject-part of a [[#Triple|triple]] in [[#Linked data|linked data]]. An item is a type of an [[#Entity|entity]].</span> {{see|Help:Items}}
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| style="border-bottom: 1px dotted black" | {{anchor|Item identifier}}{{anchor|Identifier}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Item identifier''': see '''[[#QID|QID]]''' below.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Label}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Label''' is the main name given to an [[#Item|item]] or a [[#Property|property]]. E.g. the item with the [[#Entity-ID|item identifier]] [[Q7378]] has the English label “elephant”. An entity may have one label in each given human language. Labels do not need to be unique. [[#Description|Descriptions]] and [[#Alias|aliases]] are used to distinguish between entities with the same label. A label of a ''Wikidata [[#Page|page]]'' is automatically displayed in the user interface language in front of its [[#Entity-ID|id]] (e.g. "elephant <small>([[Q7378]])</small>"). A label does ''not'' uniquely identify the page; this function is served by its [[#QID|QID]] ''([[#Title|title]])'' only. The label is a type of [[#Term|term]]. In English, labels should generally follow the English language [[:w:en:Capitalization in English|capitalization rules]]: uppercase should only be used in [[:w:en:Proper noun|proper nouns]].</span> {{see|Help:Labels}}
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| style="border-bottom: 1px dotted black" | {{anchor|Lag}} {{anchor|Database lag}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Lag''' or '''database lag''' at Wikidata is a delay in the update of data on other projects or [[#Query Server|Query Server]].</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Languageattribute}}{{anchor|Language_attributes}}{{anchor|languageattribute-description}}{{anchor|languageattribute-label}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Language attributes''' are the language-specific {{anchor|Languageattribute-label}}''[[#Label|labels]]'', {{anchor|Languageattribute-alias}}''[[#Alias|aliases]]'' and {{anchor|Languageattribute-description}}''[[#Description|descriptions]]'' that are assigned to [[#Item|items]], [[#Property|properties]] and [[#Query|queries]]. These are human-readable text to improve understanding of the scope of the item; for example, the specific type of real world entity. If they are missing, some of them can be replaced by strings from alternate languages, following the [[#Languagefallback|language fallback chains]].</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Language code}}{{anchor|Langcode}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Language code''' is an identifier for the language of a label, description, alias, or monolingual text value. The language codes for labels, descriptions, and aliases are shared with other Wikimedia projects. More codes for monolingual text are defined specifically for Wikidata. Lexemes use some of these, as well as some additional codes or items to identify the language in lemma, gloss, and form. A language code is also assigned to sitelinks. Codes are based mostly on [[Q1059900|IETF language tags]].</span> {{see|Help:Monolingual text languages}}
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| style="border-bottom: 1px dotted black" | {{anchor|Languagefallback}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Language fallbacks''' (also ''language chains'') are methods to systematically replace missing [[#Languageattribute|language attributes]] with strings from alternate languages. The exact replacement rules can be chosen depending on the type of page, whether the user is logged in, or the user preferred languages.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Lexeme}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Lexeme''' is an [[#Entity|entity]] of [[Wikidata:Lexicographical data|Lexicographical data]]. A lexeme may contain sense and form entities, but no sitelinks. Instead of a label, a description, and aliases, lexeme entities have a lemma (possibly more than one, for languages with spelling variants), a language, and a lexical category.</span> {{see|Wikidata:Lexicographical data/Glossary}}
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| style="border-bottom: 1px dotted black" | {{anchor|LID}} <span lang="en" dir="ltr" class="mw-content-ltr">'''LID''' (or '''L number''') The identifier for a [[#Lexeme|lexeme]] [[#Entity|entity]] in Wikidata, comprising the letter "L" followed by one or more digits.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Listeria}}{{anchor|Wikidata list}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Listeria''' (or '''Wikidata list''') is a tool to [[#View|show]] data from Wikidata in list form at Wikimedia projects. Data is periodically updated by bot.</span> {{see|Template:Wikidata list}}
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| style="border-bottom: 1px dotted black" | {{anchor|Mainspace}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Mainspace''' is one of the [[#Namespace|namespaces]] in a wiki. Namespaces in Wikidata other than the mainspace have prefixes. In Wikidata, the mainspace contains the pages with the [[#Item|items]].</span>{{see|Help:Namespaces}}
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| style="border-bottom: 1px dotted black" | {{anchor|MediaWiki}} <span lang="en" dir="ltr" class="mw-content-ltr">'''MediaWiki''' is the software that runs [[#Wikidata|Wikidata]], Wikipedia and other [[#Wiki|wikis]]. The MediaWiki installation of Wikidata makes use of the [[#Wikibase|Wikibase]] extension.</span>  {{See|mw:Special:MyLanguage/Manual:What is MediaWiki?}}
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| style="border-bottom: 1px dotted black" | {{anchor|MediaInfo}}{{anchor|Mediaentity}}{{anchor|Mediainfo}} <span lang="en" dir="ltr" class="mw-content-ltr">'''MediaInfo''' is a type of [[#Entity|entity]] used to describe files. It's activated on Wikimedia Commons.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Meta-page}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Meta pages''' These are all the pages that are not [[#Entity|entities]], which means that they do not belong to the [[#Data namespace|data namespaces]]. Wikidata meta pages contain unstructured content in wikitext, including Wikidata [[#Client|client]] side [[#Inclusion|inclusion]] code. Examples are ''talk pages'', ''category pages'', ''project pages'' (in the Wikidata namespace) and ''help pages'' (in the Help namespace). Meta pages also comprise content and data automatically generated by the MediaWiki software (for example, the edit history of a [[#Page|page]], or [[Special:Specialpages|special pages]]).</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Name}}{{anchor|Given name}}{{anchor|Family name}}{{anchor|First name}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Name item''' is a Wikidata item about a given name or a family name. Such items are used as values for {{label|P734|{{PAGELANGUAGE}}|link=wikidata}} or {{label|P735|{{PAGELANGUAGE}}|link=wikidata}} and can include additional information and sitelinks.</span><!-- included due to frequency and specifics of items --> {{see|Wikidata:WikiProject Names}}
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| style="border-bottom: 1px dotted black" | {{anchor|Namespace}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Namespaces''' are a kind of category for pages in a wiki. For each namespace you may have different rules about the pages and their content. In Wikidata, the most important namespace (or ‘[[#Mainspace|main namespace]]’) is for the Wikidata [[#Item|items]]. The URL of a Wikidata mainspace page ends with a <code><nowiki>Q</nowiki></code> and a number, for example, [[Q7378]] for “Elephant”. The pages in other namespaces start with the namespace name, the “prefix”. For example, help pages start with “<span dir="ltr" lang="en">Help:</span>”, such as [[Special:MyLanguage/Help:Contents|Help:Contents]].</span> {{see|Help:Namespaces}}
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| style="border-bottom: 1px dotted black" | {{anchor|Object}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Object''' See [[#Subject|Subject]]</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Order of statements}}{{anchor|Order}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Order of statements''' is generally determined by the [[#View|view]] being used and not significant. Many views display data retrieved or entered first before other. Some views sort or allow to sort statements based on qualifier value, statement value, property, or datatype.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Page}}{{anchor|page}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Page''' is an internal or external webpage with a unique [[#Title|title]], for example, an ''article'' in Wikipedia main namespace or an ''item'' in Wikidata main namespace. A page is a part of a site. In Wikidata, the term "page" may refer to an [[#Item|item]] or a [[#Property|property]] page in the [[#Data namespace|data namespaces]], to a [[#Meta-page|meta page]] in other namespaces, or to an external ''linked page'' on Wikipedia, another Wikimedia site, or an external site. A page on a client site may be referenced using a [[#Sitelink|sitelink]]. Pages in the main namespace of Wikidata contain [[#Item|items]], and one page can only hold one item.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Predicate}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Predicate''' See [[#Subject|Subject]]</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Prefix}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Prefix''' Used in the [[#Query|query service]].</span> {{See|mw:Wikibase/Indexing/RDF Dump Format/Prefixes}} {{see|EntitySchema:E49}}
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| style="border-bottom: 1px dotted black" | {{anchor|Project}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Project''' is a term often used in the [[#Wikimedia|Wikimedia]] movement to refer to a Wikimedia [[#Wiki|wiki]]. In Wikidata, the term usually refers to [[#Wikidata|Wikidata]] itself.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Property}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Property''' describes the data value of a [[#Statement|statement]] and can be thought of as a category of data, for example, "color" for the data value "blue". Properties, when paired with [[#Value|values]], form a statement in Wikidata. Properties are also used in [[#Qualifier|qualifiers]]. Properties have their own pages on Wikidata and are connected to [[#Item|items]], resulting in a linked data structure. A property is a type of an [[#Entity|entity]]</span> {{see|Help:Properties}}
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| style="border-bottom: 1px dotted black" | {{anchor|Property suggester}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Property suggester''' provides a preselection of [[#Property|properties]] when adding statements to Wikidata items. These are based on the frequency of the properties on similar items. Example: on an item with {{label|P31|{{PAGELANGUAGE}}|link=wikidata}}={{label|Q5|{{PAGELANGUAGE}}|link=wikidata}} only, suggestions could be {{label|P21|{{PAGELANGUAGE}}|link=wikidata}}, {{label|P106|{{PAGELANGUAGE}}|link=wikidata}}, {{label|P569|{{PAGELANGUAGE}}|link=wikidata}}. These may or may not be appropriate for the specific item. This is different from [[#Entity selector|entity selector]] and [[#Suggestion constraint|suggestion constraints]].</span> {{see|Help:Suggesters and selectors}}
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| style="border-bottom: 1px dotted black" | {{anchor|QID}} <span lang="en" dir="ltr" class="mw-content-ltr">'''QID''' (or '''Q number''') is the [[#Entity-ID|unique identifier]] of a data [[#Item|item]] on Wikidata, comprising the letter "Q" followed by one or more digits. It is used to help people and machines understand the difference between items with the same or similar names. For example, there are several places in the world called London and many people called James Smith. This number appears next to the [[#Label|label]] at the top of each Wikidata item.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Qualifier}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Qualifier''' is a part of the [[#Claim|claim]] that says something about the specific claim, often in a descriptive way. A qualifier might be a term according to a specific vocabulary but can also be a variant descriptive phrase (whether those terms or phrases are free text or part of some vocabulary would probably be up to the Wikidata community).</span> {{see|Help:Qualifiers}}
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| style="border-bottom: 1px dotted black" | {{anchor|Quantity}}{{anchor|Number}}{{anchor|Numbers}}{{anchor|Quantities}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Quantity''' (incorrectly '''number''') is a [[#Datatype|datatype]] for property values. It allows to enter integers or decimal numbers. Optionally a [[#Unit|unit]] or a bound can be included. The [[Property:P1082|Wikidata property for population]] has such values. Numeric identifiers are not quantities, but [[#External-ID|external identifiers]].</span>{{see|Help:Data type#Quantity}}
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| style="border-bottom: 1px dotted black" | {{anchor|Query}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Query''' is a search across [[#Item|items]] in Wikidata and their associated data. Queries are usually executed on the [[#WDQS|Wikidata Query Service]] using the SPARQL query language.</span>{{see|Wikidata:SPARQL query service/Wikidata Query Help}}
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| style="border-bottom: 1px dotted black" | {{anchor|QuickStatements}}{{anchor|QS}} <span lang="en" dir="ltr" class="mw-content-ltr">'''QuickStatements''' (QS) is a third-party tool that can edit Wikidata items, based on a simple set of text commands. The tool can add and remove statements, labels, descriptions, and aliases. It can also add statements with optional qualifiers and sources.</span> {{see|Help:QuickStatements}}
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| style="border-bottom: 1px dotted black" | {{anchor|Rank}}{{anchor|Rank-deprecated}}{{anchor|Rank-normal}}{{anchor|Rank-preferred}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Rank''' is a quality factor used for simple selection and filtering in cases where there are several [[#Statement|statements]] for a given property. In such cases, you may want to indicate which statement is more important or relevant than other statements. By default, a statement has the rank "normal", but you can change this to either "preferred" or "deprecated". "deprecated" rank can be used for statements supported by a reference, but considered incorrect.</span>  {{see|Help:Ranking}}
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| style="border-bottom: 1px dotted black" | {{anchor|Redir}}{{anchor|Redirect}}{{anchor|Redirecting entity}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Redirecting entity''' (or '''redirect''') is an [[#Item|item]] or a [[#Lexeme|lexeme]] that redirects to another item or lexeme (target). As in many uses these would need to be queried specifically, a bot usually replaces redirects used as values with their target.</span> {{see|Help:Redirects}}
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| style="border-bottom: 1px dotted black" | {{anchor|Reference}} <span lang="en" dir="ltr" class="mw-content-ltr">A '''Reference''' (or ''source'') is used to point to a specific resource that supports a [[#Claim|claim]] in [[#Wikidata|Wikidata]]. A reference can be a link to a URL or an [[#Item|item]]; for example, an item about a book. Wikidata does not aim to answer the question of whether a claim is correct, but only whether the claim appears in a reference. A claim together with the reference form a [[#Statement|statement]].</span> {{see|Help:Sources}}
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| style="border-bottom: 1px dotted black" | {{anchor|Repurposing}}{{anchor|Repurpose}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Repurposing''' is changing the definition or scope of an [[#Entity|entity]], in general an item, by editing its label, description or statements. Generally to be avoided.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Sandbox}}{{anchor|Sandbox item}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Sandbox''' or '''sandbox items''' are series of items, properties and other entities at Wikidata to test features within the Wikidata live database. Examples: item [[Q4115189]], property [[Property:P369]], EntitySchema [[EntitySchema:E123]], lexeme [[Lexeme:L123]].</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Sense}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Sense''' refers to a specific meaning for a [[#Lexeme|lexeme]]. Senses are identified on each lexeme by the [[#LID|Lexeme ID]] followed by a dash, the letter "S" and a number. Senses may have statements just as other entities do. They also allow a "gloss": a free-form description of the meaning (one per language). A sense is a type of an [[#Entity|entity]].</span> {{see|Wikidata:Lexicographical data/Glossary}}
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| style="border-bottom: 1px dotted black" | {{anchor|Sitelink-site}}{{anchor|Site}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Site''' is a reference to an external website in general, but in [[#Sitelink|sitelinks]] it refers to specific registered wikis, for example, a Wikipedia language version. Those sites are referenced by site identifiers, or for short ''siteid''s, technically corresponding to the wiki's [[mw:Special:MyLanguage/Manual:$wgDBname|DBname]]. For example, the Latin Wikipedia's siteid is <code>lawiki</code>. Each external [[#Page|page]] can have only one link registered in Wikidata and one [[#Item|item]] can only have one link to each external site.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Sitelink}}{{anchor|sitelink}}{{anchor|sitelinks}}{{anchor|sitelinks-title}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Sitelink''' is an identification of a linked page on another site. It consists of a [[#Sitelink-site|site identifier]] and a [[#Title|title]], and is stored in individual [[#Item|items]] in Wikidata. Sitelinks are used both for identifying an item from an external site, and as a central storage of interlanguage links (sometimes known as "interwiki links", although this term also has a different meaning).</span> {{see|Help:Sitelinks}}
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| style="border-bottom: 1px dotted black" | <span lang="en" dir="ltr" class="mw-content-ltr">'''Sitelinks between Wiktionary editions''' are generally not provided through Wikidata, but another function.</span> {{see|Wikidata:Wiktionary/Sitelinks}}
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| style="border-bottom: 1px dotted black" | {{anchor|Snak}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Snak''' is a technical term of [[#Wikibase|Wikibase]] software which data users are most likely to encounter when [[Wikidata:Data access#MediaWiki API|accessing Wikidata through the MediaWiki API]]. It refers to the combination of a [[#Property|property]] and either a [[#Values|value]] or one of the special cases "{{int|wikibase-snakview-snaktypeselector-novalue}}" and "{{int|wikibase-snakview-snaktypeselector-somevalue}}". Snaks can be found in [[#Claim|claims]] (then they are called ''main snaks'') or in [[#Qualifier|qualifiers]] as part of [[#Statement|statements]] (then they are called ''qualifier snaks''). E.g., in the statement "Emma Watson was a cast member of [[Q102438|Harry Potter and the Philosopher's Stone]] in the role of Hermione Granger" there is a main snak "was a cast member of Harry Potter and the Philosopher's Stone" and a qualifier snak "in the role of Hermione Granger".</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Statement}} <span lang="en" dir="ltr" class="mw-content-ltr">A '''Statement''' is a piece of data about an [[#Item|item]], recorded on the item's [[#Page|page]]. A statement consists of a [[#Claim|claim]] (a property-value pair such as "Location: Germany", together with optional qualifiers), augmented by [[#Reference|references]] (giving the source for the claim) and a [[#Rank|rank]] (used to distinguish between several claims containing the same property; "normal" by default). Wikidata makes no assumptions about the correctness of statements, but merely collects and reports them with a [[#Reference|reference]] to a source. The term "statement" is often used interchangeably with "[[#Claim|claim]]", but technically it only becomes a statement once at least one reference has been added.</span> {{see|Help:Statements}}
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| style="border-bottom: 1px dotted black" | {{anchor|String}} <span lang="en" dir="ltr" class="mw-content-ltr">'''String''' (also ''character string'') is a general term for a sequence of freely chosen characters interpreted as text like "Hello", as opposed to a value interpreted as a numerical value (like 3.14) or a link to an item (like <code><nowiki>[[Q1234]]</nowiki></code>). In addition to a string [[#Datatypes|datatype]], Wikidata supports language-specific texts using "monolingual-text" as the [[#Values|value]] of a property.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Subject}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Subject''', '''predicate''' and '''object''' are terms sometimes used to describe a [[#Claim|claim]] when viewing [[#Entity|entity]], [[#Property|property]] and [[#Value|value]] as a [[#Triple|triple]].</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Suggestion constraint}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Suggestion constraint''' is a status of a property [[#Constraint|constraint]] that provides suggestions of additional improvements. This can be statements with other properties to be added to the item.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Term}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Term''' is a part of [[#Entity|entity]], includes [[#Label|label]], [[#Description|description]] and [[#Alias|alias]]. Terms may only be plain text, which means that they cannot contain any wiki markup.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Termbox}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Termbox''' is the zone at the top of an item page, which includes the labels, the descriptions, and the aliases in different languages.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Title}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Title''' is the name of a [[#Page|page]]. All pages must have a unique title within a given [[#Wiki|wiki]], as the title is included in the URL for the page. For example, there can be only one page with the title "Douglas Adams" on English Wikipedia. In Wikidata, a title is either an [[#Entity-ID|entity identifier]] such as [[Q42]], or it starts with a [[#Namespace|namespace]] prefix such as <code><nowiki>Help:</nowiki></code>. The page title is not to be confused with the [[#Label|label]] for a Wikidata item or property. Wikidata [[#Items|items]] are connected to pages on other [[#Wikis|Wikimedia wikis]] via [[#Sitelink|sitelinks]], which use the page's title to uniquely identify the resource.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Triple}}{{anchor|Triplet}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Triple''' (or "[[Q3539534|semantic triple]]", or "triplet") is the atomic data entity in the RDF data model, which codifies statements in the form of subject–predicate–object expressions.</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Unit}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Unit''' is a Wikidata item used with a [[#Quantity|quantity]]-value. Frequently used units are metre or EUR, but any item could be used as unit. If the unit includes a {{label|P2370|{{PAGELANGUAGE}}|link=wikidata}} statement, quantities with the unit are normalized based on that. See [[mw:Wikibase/Indexing/RDF Dump Format#Normalized values]].</span>
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| style="border-bottom: 1px dotted black" | {{anchor|Value}}{{anchor|Values}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Value''' (also ''datavalue'') is the actual piece of information stored within a [[#Claim|claim]]. Wikidata has a range of allowed [[#Datatypes|datatypes]], such as "item", "mathematical expression", and "quantity". The datatype needed for any given claim is determined by the property used (e.g. the value in a "place of birth" claim must be an "item"). Instead of a normal value, you can also use one of the special cases "{{int|wikibase-snakview-snaktypeselector-novalue}}" or "{{int|wikibase-snakview-snaktypeselector-somevalue}}" in a claim.</span> {{see|Help:Statements|anchor=Values}}
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| style="border-bottom: 1px dotted black" | {{anchor|Value_type}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Value type''' is the way [[#Value|values]] are stored internally. Each [[#Datatype|data type]] corresponds to one value type. For example, although external identifier, Commons media and mathematical expression are different datatypes, they all use the "string" value type. Values for some data types contain multiple parts with different value types. For example, a quantity contains four parts: "amount", "unit", "upperbound" and "lowerbound", the last two being optional. Unit is a URL which points to a Wikidata item; the other three parts are numbers in string (not floating-point number).</span>
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| style="border-bottom: 1px dotted black" | {{anchor|View}}{{anchor|Views}} <span lang="en" dir="ltr" class="mw-content-ltr">'''View''' is a way data can be visualized or accessed. Besides the default view, Wikibase offers views for mobile devices, as well as for rdf and json formats. The data can be accessed with an API. Data on Wikidata is mirrored on [[#WQS|Wikidata Query Server]] offering various result views. Some of the views are [[#Edit|editing views]], others not. Examples of tools and extensions that provide custom views are [[:mw:Reasonator|Reasonator]], [[#Placeholder|Article Placeholder]], and [[#Listeria|Listeria]].</span> {{see|Wikidata:Data access}} {{see|Wikidata:How to use data on Wikimedia projects}} {{see|Wikidata:SPARQL query service/Wikidata Query Help/Result Views}}
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| style="border-bottom: 1px dotted black" | {{anchor|Wikibase}}{{anchor|Wikibase-extensions}}{{anchor|Repository}}{{anchor|Repo}}{{anchor|Client}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Wikibase''' is the software behind Wikidata. It consists of a set of extensions to the [[#MediaWiki|MediaWiki]] software. These extensions allow Wikidata to manage data in [[#Item|items]] and [[#Property|properties]], and search for this data using [[#Query|queries]].</span> {{see|Help:Wikibase}}
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| style="border-bottom: 1px dotted black" | {{anchor|Wikidata}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Wikidata''' is a Wikimedia project that runs an instance of [[#MediaWiki|MediaWiki]] with the [[#Wikibase-extensions|Wikibase extensions]]. It enables ''Wikidata editors'' to enter data and browse [[#Page|pages]] that display it.</span> {{see|Wikidata:Introduction}}
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| style="border-bottom: 1px dotted black" | {{anchor|Wikidata Query Service}}{{anchor|WDQS}}{{anchor|Query Server}}{{anchor|WQS}}{{anchor|Wikidata Query Server}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Wikidata Query Service''' (or '''WDQS''') is the official service for [[#Query|querying]] Wikidata using the SPARQL query language.</span> {{see|Wikidata:SPARQL query service/Wikidata Query Help}}
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| style="border-bottom: 1px dotted black" | {{anchor|Wikimedia}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Wikimedia''' is the name of a movement which consists of people and organizations. Wikidata is run by the Wikimedia Foundation together with other [[#Wiki|wikis]] such as Wikipedia. The [[#Wikibase|Wikibase]] software is mainly developed by Wikimedia Germany which is one of the national Wikimedia affiliations.</span> {{see|Help:Wikimedia}}
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| style="border-bottom: 1px dotted black" | {{anchor|Wikimedia Project}} <span lang="en" dir="ltr" class="mw-content-ltr">'''Wiki''' is a website that can be edited by the visitors quickly. Wikipedia and Wikidata are wikis.</span> {{see|Help:Wiki}}
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<div lang="en" dir="ltr" class="mw-content-ltr">
== Related Glossaries ==
</div>

* <span lang="en" dir="ltr" class="mw-content-ltr">[[w:en:Wikipedia:Glossary|English Wikipedia Glossary]]</span>
* [[:translatewiki:Translating:MediaWiki/Basic glossary|<span lang="en" dir="ltr" class="mw-content-ltr">Basic MediaWiki Glossary</span>]]
* <span lang="en" dir="ltr" class="mw-content-ltr">[[mw:Special:MyLanguage/Manual:Glossary|MediaWiki Glossary]]</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">[[meta:Special:MyLanguage/Glossary|Glossary of Wikimedia jargon]]</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">[[Special:MyLanguage/Wikidata:Lexicographical data/Glossary|Lexicographical data glossary]] and [[Wikidata:Lexicographical data/Glossary/Candidates|linguistic terminology within the scope of Wiktionary and Wikidata]]</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">[[c:Special:MyLanguage/Commons:Structured data/Features glossary|Structured data (MediaInfo) glossary]]</span>
* [[:f:Special:MyLanguage/Wikifunctions:Glossary|<span lang="en" dir="ltr" class="mw-content-ltr">Wikifunctions Glossary</span>]]
* [[:m:Special:MyLanguage/Abstract Wikipedia/Glossary|<span lang="en" dir="ltr" class="mw-content-ltr">Abstract Wikipedia Glossary</span>]]

{{Translation categories}}