Confederacy vs Dixieland

Confederacy and Dixieland both are nouns.

Word	Noun	Adjective	Verb	Adverb
Confederacy	Yes	No	No	No
Dixieland	Yes	No	No	No

As nouns, Confederacy and Dixieland are synonyms defined as:

Confederacy and Dixieland: the southern states that seceded from the United States in 1861

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

Confederacy (noun)	Dixieland (noun)
the southern states that seceded from the United States in 1861	the southern states that seceded from the United States in 1861