geographical area vs Gulf States

geographical area and Gulf States both are nouns.

Word	Noun	Adjective	Verb	Adverb
geographical area	Yes	No	No	No
Gulf States	Yes	No	No	No

geographical area (noun)	Gulf States (noun)
a demarcated area of the Earth	a region of the United States comprising states bordering the Gulf of Mexico; Alabama and Florida and Louisiana and Mississippi and Texas
	the countries in southwestern Asia that border the Persian Gulf