Great Britain vs class list

Great Britain and class list both are nouns.

Word	Noun	Adjective	Verb	Adverb
Great Britain	Yes	No	No	No
class list	Yes	No	No	No

Great Britain (noun)	class list (noun)
an island comprising England and Scotland and Wales	a list issued by examiners that categorizes students according to the class of honours they achieved in their degree examinations
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