housing estate vs Britain

housing estate and Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
housing estate	Yes	No	No	No
Britain	Yes	No	No	No

housing estate (noun)	Britain (noun)
a residential area where the houses were all planned and built at the same time	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