Horn definition

(1) One of the bony outgrowths on the heads of certain ungulates

(2) Any hard protuberance from the head of an organism that is similar to or suggestive of a horn

(3) A device on an automobile for making a warning noise

(4) A brass musical instrument with a brilliant tone; has a narrow tube and a flared bell and is played by means of valves

(5) A brass musical instrument consisting of a conical tube that is coiled into a spiral and played by means of valves

(6) An alarm device that makes a loud warning sound

(7) A high pommel of a Western saddle (usually metal covered with leather)

(8) A noisemaker (as at parties or games) that makes a loud noise when you blow through it

(9) A noise made by the driver of an automobile to give warning;

(10) The material (mostly keratin) that covers the horns of ungulates and forms hooves and claws and nails

(11) Stab or pierce with a horn or tusk

"The rhino horned the explorer"