Susiana vs Elam

Susiana and Elam both are nouns.

Word	Noun	Adjective	Verb	Adverb
Susiana	Yes	No	No	No
Elam	Yes	No	No	No

As nouns, Susiana and Elam are synonyms defined as:

Susiana and Elam: an ancient country in southwestern Asia to the east of the Tigris River (in what is modern Iran); was known for its warlike people

Other synonyms of Susiana include Biblical Elam.

Susiana (noun)	Elam (noun)
an ancient country in southwestern Asia to the east of the Tigris River (in what is modern Iran); was known for its warlike people	an ancient country in southwestern Asia to the east of the Tigris River (in what is modern Iran); was known for its warlike people