military junta vs coterie

military junta and coterie both are nouns.

Word	Noun	Adjective	Verb	Adverb
military junta	Yes	No	No	No
coterie	Yes	No	No	No

As nouns, coterie is a hypernym of military junta; that is, coterie is a word with a broader meaning than military junta:

military junta: a group of military officers who rule a country after seizing power
coterie: an exclusive circle of people with a common purpose

Other hypernyms of military junta include camp, clique, ingroup, inner circle, pack.

military junta (noun)	coterie (noun)
a group of military officers who rule a country after seizing power	an exclusive circle of people with a common purpose