Crown land vs United Kingdom of Great Britain and Northern Ireland

Crown land and United Kingdom of Great Britain and Northern Ireland both are nouns.

Word	Noun	Adjective	Verb	Adverb
Crown land	Yes	No	No	No
United Kingdom of Great Britain and Northern Ireland	Yes	No	No	No

Crown land (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
land that belongs to the Crown	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