United Kingdom of Great Britain and Northern Ireland vs county

United Kingdom of Great Britain and Northern Ireland and county both are nouns.

Word	Noun	Adjective	Verb	Adverb
United Kingdom of Great Britain and Northern Ireland	Yes	No	No	No
county	Yes	No	No	No

United Kingdom of Great Britain and Northern Ireland (noun)	county (noun)
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	(United Kingdom) a region created by territorial division for the purpose of local government
	(United States) the largest administrative district within a state