Great Britain vs bin liner

Great Britain and bin liner both are nouns.

Word	Noun	Adjective	Verb	Adverb
Great Britain	Yes	No	No	No
bin liner	Yes	No	No	No

Great Britain (noun)	bin liner (noun)
an island comprising England and Scotland and Wales	a plastic bag used to line a trash or garbage bin
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