What is the meaning of horn?

noun

• A noisemaker (as at parties or games) that makes a loud noise when you blow through it.
• One of the bony outgrowths on the heads of certain ungulates.
• A noise made by the driver of an automobile to give warning;.
• A high pommel of a Western saddle (usually metal covered with leather.
  • synonyms: saddle horn
• A brass musical instrument with a brilliant tone; has a narrow tube and a flared bell and is played by means of valves.
  • synonyms: cornet, trumpet, trump
• Any hard protuberance from the head of an organism that is similar to or suggestive of a horn.
• The material (mostly keratin) that covers the horns of ungulates and forms hooves and claws and nails.
• A device having the shape of a horn.
  • usage: "horns at the ends of a new moon"; "the hornof an anvil"; "the cleat had two horns"
• An alarm device that makes a loud warning sound.
• A brass musical instrument consisting of a conical tube that is coiled into a spiral and played by means of valves.
  • synonyms: French horn
• A device on an automobile for making a warning noise.
  • synonyms: automobile horn, car horn, motor horn, hooter

verb

• Stab or pierce with a horn or tusk.
  • usage: "the rhino horned the explorer"
  • synonyms: tusk