South vs Confederate States

South and Confederate States both are nouns.

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

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

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

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

South (noun)	Confederate States (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