Sudbury vs Greater Sudbury

Sudbury and Greater Sudbury both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sudbury	Yes	No	No	No
Greater Sudbury	Yes	No	No	No

As nouns, Sudbury and Greater Sudbury are synonyms defined as:

Sudbury and Greater Sudbury: a city in south central Canada in Ontario; a major nickel mining center

Sudbury (noun)	Greater Sudbury (noun)
a city in south central Canada in Ontario; a major nickel mining center	a city in south central Canada in Ontario; a major nickel mining center