citizens committee vs NGO

citizens committee and NGO both are nouns.

Word	Noun	Adjective	Verb	Adverb
citizens committee	Yes	No	No	No
NGO	Yes	No	No	No

As nouns, NGO is a hypernym of citizens committee; that is, NGO is a word with a broader meaning than citizens committee:

citizens committee: a self-constituted organization to promote something
NGO: an organization that is not part of the local or state or federal government

Other hypernyms of citizens committee include nongovernmental organization.

citizens committee (noun)	NGO (noun)
a self-constituted organization to promote something	an organization that is not part of the local or state or federal government