intake vs air horn

intake and air horn both are nouns.

Word	Noun	Adjective	Verb	Adverb
intake	Yes	No	No	No
air horn	Yes	No	No	No

As nouns, air horn is a hyponym of intake; that is, air horn is a word with a more specific, narrower meaning than intake:

Other hyponyms of intake include siamese, siamese connection.

intake (noun)	air horn (noun)
the process of taking food into the body through the mouth (as by eating)	air intake of a carburetor
the act of inhaling; the drawing in of air (or other gases) as in breathing	a pneumatic horn
an opening through which fluid is admitted to a tube or container