constable vs Great Britain

constable and Great Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
constable	Yes	No	No	No
Great Britain	Yes	No	No	No

constable (noun)	Great Britain (noun)
a lawman with less authority and jurisdiction than a sheriff	an island comprising England and Scotland and Wales
a police officer of the lowest rank	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