gin mill vs United Kingdom

gin mill and United Kingdom both are nouns.

Word	Noun	Adjective	Verb	Adverb
gin mill	Yes	No	No	No
United Kingdom	Yes	No	No	No

gin mill (noun)	United Kingdom (noun)
tavern consisting of a building with a bar and public rooms; often provides light meals	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