rustication vs Great Britain

rustication and Great Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
rustication	Yes	No	No	No
Great Britain	Yes	No	No	No

rustication (noun)	Great Britain (noun)
the action of retiring to and living in the country	an island comprising England and Scotland and Wales
banishment into the country	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
the construction of masonry or brickwork in a rustic manner
temporary dismissal of a student from a university
the condition naturally attaching to life in the country