geographical area vs Canadian Maritime Provinces

geographical area and Canadian Maritime Provinces both are nouns.

Word	Noun	Adjective	Verb	Adverb
geographical area	Yes	No	No	No
Canadian Maritime Provinces	Yes	No	No	No

geographical area (noun)	Canadian Maritime Provinces (noun)
a demarcated area of the Earth	the collective name for the Canadian provinces of New Brunswick and Nova Scotia and Prince Edward Island