Great Britain vs nan

Great Britain and nan both are nouns.

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

Great Britain (noun)	nan (noun)
an island comprising England and Scotland and Wales	leavened bread baked in a clay oven in India; usually shaped like a teardrop
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	your grandmother
	the mother of your father or mother