Dictionary Check: horn

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)

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

any hard protuberance from the head of an organism that is similar to or suggestive of a horn