United Kingdom of Great Britain and Northern Ireland vs medical intern

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

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

United Kingdom of Great Britain and Northern Ireland (noun)	medical intern (noun)
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	an advanced student or graduate in medicine gaining supervised practical experience