United Kingdom of Great Britain and Northern Ireland vs shoulder flash

United Kingdom of Great Britain and Northern Ireland and shoulder flash both are nouns.

Word	Noun	Adjective	Verb	Adverb
United Kingdom of Great Britain and Northern Ireland	Yes	No	No	No
shoulder flash	Yes	No	No	No

United Kingdom of Great Britain and Northern Ireland (noun)	shoulder flash (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	something worn on the shoulder of a military uniform as an emblem of a division etc.