hall of residence vs Britain

hall of residence and Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
hall of residence	Yes	No	No	No
Britain	Yes	No	No	No

hall of residence (noun)	Britain (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