rota vs Great Britain

rota and Great Britain both are nouns.

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

rota (noun)	Great Britain (noun)
a roster of names showing the order in which people should perform certain duties	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