Confederate States vs South

Confederate States and South both are nouns.

Word	Noun	Adjective	Verb	Adverb
Confederate States	Yes	No	No	No
South	Yes	No	No	No

As nouns, Confederate States and South are synonyms defined as:

Confederate States and South: the southern states that seceded from the United States in 1861

Other synonyms of Confederate States include Confederacy, Confederate States of America, Dixie, Dixieland.

Confederate States (noun)	South (noun)
the southern states that seceded from the United States in 1861	the southern states that seceded from the United States in 1861
	the region of the United States lying to the south of the Mason-Dixon line