The Jierimse alphabet (/ˌdʒiəˈrɪmseɪ/) is a constructedalphabet with aspects from a featural writing system that is used to write Australian English. It is a pure alphabet, in the sense that each phoneme directly corresponds with glyphs one-to-one. It is featural to some extent due to how glyphs representing voiced consonants are vertically flipped versions of their unvoiced counterparts, similar to the Shavian alphabet. It also features the use of diacritic marks for long vowels and diphthongs, for which the former are written above certain vowel glyphs and the latter are written below.
There are 45 letters in Jierimse if vowels letters marked with diacritics are considered separate ones, if not there are at least 33. These letters directly correspond to the 44 phonemes of Australian English, which include 24 consonants and 20 vowels (14 regular vowels and 6 diphthongs). One extra optional letter is one that represents the voiceless palatal fricative ⟨ç⟩, that often manifests as a realization of the consonant cluster /hj/ in words like "hue". It is optional due to it only occurring in speech from certain speakers, while many only use the cluster /hj/ in its normal unrealized state.