topping vs Great Britain

topping and Great Britain both are nouns.

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

topping (noun)	Great Britain (noun)
a flavorful addition on top of a dish	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

topping (adjective)	Great Britain (adjective)
excellent; best possible