front bench vs United Kingdom of Great Britain and Northern Ireland

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

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

front bench (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
any of the front seats in the House of Commons that are reserved for ministers or former ministers	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