rave-up vs U.K.

rave-up and U.K. both are nouns.

Word	Noun	Adjective	Verb	Adverb
rave-up	Yes	No	No	No
U.K.	Yes	No	No	No

rave-up (noun)	U.K. (noun)
a large overnight dance party where electronic music is played and illegal drugs are usually taken	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 raucous gathering