crew vs squad

crew and squad both are nouns.

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

As nouns, squad is a hypernym of crew; that is, squad is a word with a broader meaning than crew:

Other hypernyms of crew include team.

crew (noun)	squad (noun)
an organized group of workmen	a cooperative unit (especially in sports)
the men and women who man a vehicle (ship, aircraft, etc.)	a smallest army unit
the team of men or women manning a racing shell	a small squad of policemen trained to deal with a particular kind of crime
an informal body of friends

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