trillion vs U.K.

trillion and U.K. both are nouns.

Word	Noun	Adjective	Verb	Adverb
trillion	Yes	Yes	No	No
U.K.	Yes	No	No	No

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

trillion (adjective)	U.K. (adjective)
one million million in the United States
one quintillion in Great Britain