hit squad vs squad

hit squad and squad both are nouns.

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

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

Other hypernyms of hit squad include team.

hit squad (noun)	squad (noun)
a team of assassins	a cooperative unit (especially in sports)
	a smallest army unit
	a small squad of policemen trained to deal with a particular kind of crime