tipsy cake vs Great Britain

tipsy cake and Great Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
tipsy cake	Yes	No	No	No
Great Britain	Yes	No	No	No

tipsy cake (noun)	Great Britain (noun)
a trifle soaked in wine and decorated with almonds and candied fruit	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