returning officer vs Britain

returning officer and Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
returning officer	Yes	No	No	No
Britain	Yes	No	No	No

returning officer (noun)	Britain (noun)
the official in each electorate who holds the election and returns the results	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