dicky vs Great Britain

dicky and Great Britain both are nouns.

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

dicky (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

dicky (adjective)	Great Britain (adjective)
(British informal) faulty