sickness benefit vs Great Britain

sickness benefit and Great Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
sickness benefit	Yes	No	No	No
Great Britain	Yes	No	No	No

sickness benefit (noun)	Great Britain (noun)
money paid (by the government) to someone who is too ill to work	an island comprising England and Scotland and Wales
	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