Britain vs ratability

Britain and ratability both are nouns.

Word	Noun	Adjective	Verb	Adverb
Britain	Yes	No	No	No
ratability	Yes	No	No	No

Britain (noun)	ratability (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	the quality of being capable of being rated or estimated
	the state of being liable to assessment or taxation