year dot vs Great Britain

year dot and Great Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
year dot	Yes	No	No	No
Great Britain	Yes	No	No	No

year dot (noun)	Great Britain (noun)
as long ago as anyone can remember	an island comprising England and Scotland and Wales
	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