Great Britain vs ratables

Great Britain and ratables both are nouns.

Word	Noun	Adjective	Verb	Adverb
Great Britain	Yes	No	No	No
ratables	Yes	No	No	No

Great Britain (noun)	ratables (noun)
an island comprising England and Scotland and Wales	property that provides tax income for local governments
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