quizmaster vs Great Britain

quizmaster and Great Britain both are nouns.

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

quizmaster (noun)	Great Britain (noun)
the host or chairman of a radio or tv quiz show or panel game	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