Deep South vs Ala.

Deep South and Ala. both are nouns.

Word	Noun	Adjective	Verb	Adverb
Deep South	Yes	No	No	No
Ala.	Yes	No	No	No

Deep South (noun)	Ala. (noun)
the southeastern region of the United States: South Carolina and Georgia and Alabama and Mississippi and Louisiana; prior to the American Civil War all these states produced cotton and permitted slavery	a state in the southeastern United States on the Gulf of Mexico; one of the Confederate states during the American Civil War