don vs United Kingdom

don and United Kingdom both are nouns.

Word	Noun	Adjective	Verb	Adverb
don	Yes	No	Yes	No
United Kingdom	Yes	No	No	No

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

don (verb)	United Kingdom (verb)
put clothing on one's body