sex activity vs cheek

sex activity and cheek both are nouns.

Word	Noun	Adjective	Verb	Adverb
sex activity	Yes	No	No	No
cheek	Yes	No	Yes	No

sex activity (noun)	cheek (noun)
activities associated with sexual intercourse	impudent aggressiveness
	either side of the face below the eyes
	either of the two large fleshy masses of muscular tissue that form the human rump
	an impudent statement

sex activity (verb)	cheek (verb)
	speak impudently to