United Kingdom of Great Britain and Northern Ireland vs don

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

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

United Kingdom of Great Britain and Northern Ireland (noun)	don (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	teacher at a university or college (especially at Cambridge or Oxford)
	the head of an organized crime family

United Kingdom of Great Britain and Northern Ireland (verb)	don (verb)
	put clothing on one's body