United Kingdom of Great Britain and Northern Ireland vs mug

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

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

United Kingdom of Great Britain and Northern Ireland (noun)	mug (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	with handle and usually cylindrical
	the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)
	a person who is gullible and easy to take advantage of
	the quantity that can be held in a mug

United Kingdom of Great Britain and Northern Ireland (verb)	mug (verb)
	To stare awkwardly
	rob at gunpoint or with the threat of violence