sexual activity vs queer

sexual activity and queer both are nouns.

Word	Noun	Adjective	Verb	Adverb
sexual activity	Yes	No	No	No
queer	Yes	Yes	Yes	No

sexual activity (noun)	queer (noun)
activities associated with sexual intercourse	offensive term for a homosexual man

sexual activity (adjective)	queer (adjective)
	homosexual or arousing homosexual desires
	beyond or deviating from the usual or expected

sexual activity (verb)	queer (verb)
	put in a dangerous, disadvantageous, or difficult position
	hinder or prevent (the efforts, plans, or desires) of