Horn

Horn may refer to:

Horn (anatomy), the pointed projection of the skin of various animals, as an organ or its material
Horn (surname)

In music and sound

Horn (instrument), sometimes called a "French horn," a brass musical instrument constructed of coiled tubing
Horn section of a band or orchestra
Blowing horn, winding horn or age-old rudimentary sound device
Horn (acoustic), an open-ended tapered sound-guide
horn speaker, a loudspeaker
Bullhorn, or Megaphone, a device used to amplify one's voice
Bukkehorn, ancient Norwegian musical instrument
Train horn, for use on diesel and electric locomotives, as opposed to a steam whistle.
Foghorn, navigation aid for mariners
Car horn, or Klaxon, also used on trains and ships
A Shofar. A ritual horn in the Jewish religion.
A Dungchen. A ritual horn used in Tibetan Buddhism.

In geography

Horn of Africa, Somalia, Ethiopia, Eritrea and Djibouti
Cape Horn, the southernmost point of South America
Horn, Austria
Horn (district) in Austria
Horn (Netherlands), a village in the municipality of Haelen
Horn, Rutland, a small civil parish in England
Horn, Switzerland
Glacial horn, a sharp pyramidal peak on a mountain, created by glacial erosion
Horn, Germany, a municipality in the district of Rhein-Hunsrück in Rhineland-Palatinate, Germany.
Horn, Sweden

In science

Horn (telecommunications), an open-ended radio waveguide of increasing cross-sectional area
Horn (telescope), a stationary radio telescope
Horn Antenna, constructed, to support Project Echo, and used in the discovery of Cosmic microwave background radiation
Horn clause in mathematical logic.

In fiction and mythology

Gjallarhorn, the sounding horn or ringing horn of the god Heimdall, used to announce Ragnarok
King Horn, a 13th century Middle English romance story.
Horn of Gondor carried by Boromir in the Lord Of The Rings
Horn (Chinese constellation), a constellation in Chinese astronomy, known as one of the Eastern mansions of the Azure Dragon
Hörn, another name for the goddess Freyja in Norse mythology.

In slang usage

Hook 'em Horns is a hand gesture expressing support for the above teams
"Horn" is military jargon for a telephone, as in "Get on the horn"
"Horns" is a shortened version of Texas Longhorns, the sports teams of the University of Texas in Austin
"Devil horns" is a hand gesture, the Corna, with a vulgar meaning in Mediterranean countries, also used in heavy metal
"Horned" and variants can mean cuckolded.
Horn, a baseball Hat-trick, when a player strikes out six times in one game.

In other uses

Around the Horn, ESPN sports program
Horn clause, a term in formal logic
Drinking horn, an ancient drinking vessel
Anointing horn, used for the unction at a coronation
Horn (diacritic), a diacritic mark used to indicate that a normally rounded vowel such as o or u is to be pronounced unrounded
Horn-rimmed glasses
Horn, a smoking pipe shaped like a bull's horn or as a bent cone, as described in Sherlock Holmes stories
Horn of Plenty, or Cornucopia, also known as the Horn of Amalthea

See also