police squad vs squad

police squad and squad both are nouns.

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

As nouns, police squad and squad are synonyms defined as:

police squad and squad: a small squad of policemen trained to deal with a particular kind of crime

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

police squad: a small squad of policemen trained to deal with a particular kind of crime
squad: a cooperative unit (especially in sports)

Other hypernyms of police squad include team.

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