United Kingdom vs rocker

United Kingdom and rocker both are nouns.

Word	Noun	Adjective	Verb	Adverb
United Kingdom	Yes	No	No	No
rocker	Yes	No	No	No

United Kingdom (noun)	rocker (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	a curved support that permits the supported object to rock to and fro
	a chair mounted on rockers
	an ice skate with a curved blade
	a trough that can be rocked back and forth; used by gold miners to shake auriferous earth in water in order to separate the gold
	a teenager or young adult in the 1960s who wore leather jackets and rode motorcycles
	a performer or composer or fan of rock music
	an attendant who rocks a child in a cradle