Gulf States vs MS

Gulf States and MS both are nouns.

Word	Noun	Adjective	Verb	Adverb
Gulf States	Yes	No	No	No
MS	Yes	No	No	No

Gulf States (noun)	MS (noun)
a region of the United States comprising states bordering the Gulf of Mexico; Alabama and Florida and Louisiana and Mississippi and Texas	a master's degree in science
the countries in southwestern Asia that border the Persian Gulf	a state in the Deep South on the gulf of Mexico; one of the Confederate States during the American Civil War
	a chronic progressive nervous disorder involving loss of myelin sheath around certain nerve fibers