Great Britain vs gaudy

Great Britain and gaudy both are nouns.

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

Great Britain (noun)	gaudy (noun)
an island comprising England and Scotland and Wales	(Britain) a celebratory reunion feast or entertainment held at a college
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

Great Britain (adjective)	gaudy (adjective)
	(used especially of clothes) marked by conspicuous display
	tastelessly showy