sexual practice vs rub

sexual practice and rub both are nouns.

Word	Noun	Adjective	Verb	Adverb
sexual practice	Yes	No	No	No
rub	Yes	No	Yes	No

sexual practice (noun)	rub (noun)
activities associated with sexual intercourse	the act of rubbing or wiping
	an unforeseen obstacle

sexual practice (verb)	rub (verb)
	move over something with pressure
	cause friction
	scrape or rub as if to relieve itching