UK vs trillion

UK and trillion both are nouns.

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

UK (noun)	trillion (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	the number that is represented as a one followed by 12 zeros
	the number that is represented as a one followed by 18 zeros in the UK
	a very large indefinite number (usually hyperbole)

UK (adjective)	trillion (adjective)
	one million million in the United States
	one quintillion in Great Britain