privy council vs Great Britain

privy council and Great Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
privy council	Yes	No	No	No
Great Britain	Yes	No	No	No

privy council (noun)	Great Britain (noun)
an advisory council to a ruler (especially to the British Crown)	an island comprising England and Scotland and Wales
	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