crew vs crew member

crew and crew member both are nouns.

Word	Noun	Adjective	Verb	Adverb
crew	Yes	No	Yes	No
crew member	Yes	No	No	No

crew (noun)	crew member (noun)
an organized group of workmen	a member of a flight crew
the men and women who man a vehicle (ship, aircraft, etc.)
the team of men or women manning a racing shell
an informal body of friends

crew (verb)	crew member (verb)
serve as a crew member on