sexual practice vs suck

sexual practice and suck both are nouns.

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

sexual practice (noun)	suck (noun)
activities associated with sexual intercourse	the act of sucking

sexual practice (verb)	suck (verb)
	give suck to
	draw into the mouth by creating a practical vacuum in the mouth
	take in, also metaphorically
	draw something in by or as if by a vacuum
	provide sexual gratification through oral stimulation
	be inadequate or objectionable
	attract by using an inexorable force, inducement, etc.