race meeting vs Great Britain

race meeting and Great Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
race meeting	Yes	No	No	No
Great Britain	Yes	No	No	No

race meeting (noun)	Great Britain (noun)
a regular occasion on which a number of horse races are held on the same track	an island comprising England and Scotland and Wales
	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