minicar vs United Kingdom of Great Britain and Northern Ireland

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

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

minicar (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
a car that is even smaller than a subcompact car	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