Great Britain vs sickness benefit

Great Britain and sickness benefit both are nouns.

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

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