cheek vs audacity

cheek and audacity both are nouns.

Word	Noun	Adjective	Verb	Adverb
cheek	Yes	No	Yes	No
audacity	Yes	No	No	No

As nouns, audacity is a hyponym of cheek; that is, audacity is a word with a more specific, narrower meaning than cheek:

Other hyponyms of cheek include audaciousness.

cheek (noun)	audacity (noun)
impudent aggressiveness	fearless daring
either side of the face below the eyes	aggressive boldness or unmitigated effrontery
either of the two large fleshy masses of muscular tissue that form the human rump
an impudent statement

cheek (verb)	audacity (verb)
speak impudently to