powwow vs council

powwow and council both are nouns.

Word	Noun	Adjective	Verb	Adverb
powwow	Yes	No	Yes	No
council	Yes	No	No	No

As nouns, council is a hypernym of powwow; that is, council is a word with a broader meaning than powwow:

powwow (noun)	council (noun)
(informal) a quick private conference	a meeting of people for consultation
a council of or with Native Americans	a body serving in an administrative capacity
	(Christianity) an assembly of theologians and bishops and other representatives of different churches or dioceses that is convened to regulate matters of discipline or doctrine

powwow (verb)	council (verb)
hold a powwow, talk, conference or meeting