trillion vs Great Britain

trillion and Great Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
trillion	Yes	Yes	No	No
Great Britain	Yes	No	No	No

trillion (noun)	Great Britain (noun)
the number that is represented as a one followed by 12 zeros	an island comprising England and Scotland and Wales
the number that is represented as a one followed by 18 zeros in the UK	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
a very large indefinite number (usually hyperbole)

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