plughole vs United Kingdom of Great Britain and Northern Ireland

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

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

plughole (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
a hole into which a plug fits (especially a hole where water drains away)	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