Britain vs tavern keeper

Britain and tavern keeper both are nouns.

Word	Noun	Adjective	Verb	Adverb
Britain	Yes	No	No	No
tavern keeper	Yes	No	No	No

Britain (noun)	tavern keeper (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 keeper of a public house