stipendiary magistrate vs United Kingdom of Great Britain and Northern Ireland

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

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

stipendiary magistrate (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
(United Kingdom) a paid magistrate (appointed by the Home Secretary) dealing with police cases	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