United Kingdom of Great Britain and Northern Ireland vs boilers suit

United Kingdom of Great Britain and Northern Ireland and boilers suit both are nouns.

Word	Noun	Adjective	Verb	Adverb
United Kingdom of Great Britain and Northern Ireland	Yes	No	No	No
boilers suit	Yes	No	No	No

United Kingdom of Great Britain and Northern Ireland (noun)	boilers suit (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 loose protective coverall or smock worn over ordinary clothing for dirty work