horn vs alarm

horn and alarm both are nouns.

Word	Noun	Adjective	Verb	Adverb
horn	Yes	No	Yes	No
alarm	Yes	No	Yes	No

As nouns, alarm is a hypernym of horn; that is, alarm is a word with a broader meaning than horn:

Other hypernyms of horn include alarm system, warning device.

As nouns, alarm is a hypernym of horn; that is, alarm is a word with a broader meaning than horn:

Other hypernyms of horn include alarm system, warning device.

As nouns, alarm is a hypernym of horn; that is, alarm is a word with a broader meaning than horn:

Other hypernyms of horn include alarum, alert, warning signal.

horn (noun)	alarm (noun)
one of the bony outgrowths on the heads of certain ungulates	a device that signals the occurrence of some undesirable event
any hard protuberance from the head of an organism that is similar to or suggestive of a horn	a clock that wakes a sleeper at some preset time
a brass musical instrument consisting of a conical tube that is coiled into a spiral and played by means of valves	an automatic signal (usually a sound) warning of danger
a brass musical instrument with a brilliant tone; has a narrow tube and a flared bell and is played by means of valves	fear resulting from the awareness of danger
an alarm device that makes a loud warning sound
a high pommel of a Western saddle (usually metal covered with leather)
a device on an automobile for making a warning noise
a noisemaker (as at parties or games) that makes a loud noise when you blow through it
a device having the shape of a horn
a noise made by the driver of an automobile to give warning
the material (mostly keratin) that covers the horns of ungulates and forms hooves and claws and nails

horn (verb)	alarm (verb)
stab or pierce with a horn or tusk	warn or arouse to a sense of danger or call to a state of preparedness
	fill with apprehension or alarm; cause to be unpleasantly surprised