year dot vs United Kingdom of Great Britain and Northern Ireland

year dot and United Kingdom of Great Britain and Northern Ireland both are nouns.

Word	Noun	Adjective	Verb	Adverb
year dot	Yes	No	No	No
United Kingdom of Great Britain and Northern Ireland	Yes	No	No	No

year dot (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
as long ago as anyone can remember	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