dickie vs Great Britain

dickie and Great Britain both are nouns.

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

dickie (noun)	Great Britain (noun)
a man's detachable insert (usually starched) to simulate the front of a shirt	an island comprising England and Scotland and Wales
a small third seat in the back of an old-fashioned two-seater	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