hall of residence vs United Kingdom of Great Britain and Northern Ireland

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

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

hall of residence (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
a university dormitory	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