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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 whistle, also sometimes called a horn or a steam trumpet
• 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

• Hoorn, city in the Netherlands
• Horne, disambiguation page
• Horny, disambiguation page
• Corne, French word for horn

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