countinghouse vs Britain

countinghouse and Britain both are nouns.

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

countinghouse (noun)	Britain (noun)
office used by the accountants of a business	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