conservancy vs Great Britain

conservancy and Great Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
conservancy	Yes	No	No	No
Great Britain	Yes	No	No	No

conservancy (noun)	Great Britain (noun)
the official conservation of trees and soil and rivers etc.	an island comprising England and Scotland and Wales
a commission with jurisdiction over fisheries and navigation in a port or river	a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom