kitchen cabinet vs clique

kitchen cabinet and clique both are nouns.

Word	Noun	Adjective	Verb	Adverb
kitchen cabinet	Yes	No	No	No
clique	Yes	No	No	No

As nouns, clique is a hypernym of kitchen cabinet; that is, clique is a word with a broader meaning than kitchen cabinet:

kitchen cabinet: an inner circle of unofficial advisors to the head of a government
clique: an exclusive circle of people with a common purpose

Other hypernyms of kitchen cabinet include camp, coterie, ingroup, inner circle, pack.

kitchen cabinet (noun)	clique (noun)
an inner circle of unofficial advisors to the head of a government	an exclusive circle of people with a common purpose