Eccles cake vs United Kingdom of Great Britain and Northern Ireland

Eccles cake and United Kingdom of Great Britain and Northern Ireland both are nouns.

Word	Noun	Adjective	Verb	Adverb
Eccles cake	Yes	No	No	No
United Kingdom of Great Britain and Northern Ireland	Yes	No	No	No

Eccles cake (noun)	United Kingdom of Great Britain and Northern Ireland (noun)
a flat round cake of sweetened pastry filled with dried fruit	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