countenance vs Britain

countenance and Britain both are nouns.

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

countenance (noun)	Britain (noun)
the appearance conveyed by a person's face	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 human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)
formal and explicit approval

countenance (verb)	Britain (verb)
consent to, give permission; permit