conservancy vs committee

conservancy and committee both are nouns.

Word	Noun	Adjective	Verb	Adverb
conservancy	Yes	No	No	No
committee	Yes	No	No	No

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

conservancy: a commission with jurisdiction over fisheries and navigation in a port or river
committee: a special group delegated to consider some matter

Other hypernyms of conservancy include commission.

conservancy (noun)	committee (noun)
the official conservation of trees and soil and rivers etc.	a special group delegated to consider some matter
a commission with jurisdiction over fisheries and navigation in a port or river	a self-constituted organization to promote something