United Kingdom of Great Britain and Northern Ireland vs Victoria sandwich

United Kingdom of Great Britain and Northern Ireland and Victoria sandwich both are nouns.

Word	Noun	Adjective	Verb	Adverb
United Kingdom of Great Britain and Northern Ireland	Yes	No	No	No
Victoria sandwich	Yes	No	No	No

United Kingdom of Great Britain and Northern Ireland (noun)	Victoria sandwich (noun)
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	a cake consisting of two layers of sponge cake with a jelly filling in between