biscuit vs Great Britain

biscuit and Great Britain both are nouns.

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

biscuit (noun)	Great Britain (noun)
small round bread leavened with baking-powder or soda	an island comprising England and Scotland and Wales
any of various small flat sweet cakes	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