ingroup vs clique

ingroup and clique both are nouns.

Word	Noun	Adjective	Verb	Adverb
ingroup	Yes	No	No	No
clique	Yes	No	No	No

As nouns, ingroup and clique are synonyms defined as:

Other synonyms of ingroup include camp, coterie, inner circle, pack.

ingroup (noun)	clique (noun)
an exclusive circle of people with a common purpose	an exclusive circle of people with a common purpose