mere vs United Kingdom

mere and United Kingdom both are nouns.

Word	Noun	Adjective	Verb	Adverb
mere	Yes	Yes	No	No
United Kingdom	Yes	No	No	No

mere (noun)	United Kingdom (noun)
a small pond of standing water	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

mere (adjective)	United Kingdom (adjective)
apart from anything else; without additions or modifications
being nothing more than specified