UK vs nan

UK and nan both are nouns.

Word	Noun	Adjective	Verb	Adverb
UK	Yes	No	No	No
nan	Yes	No	No	No

UK (noun)	nan (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	leavened bread baked in a clay oven in India; usually shaped like a teardrop
	your grandmother
	the mother of your father or mother