Battle of the Catalaunian Plains vs Chalons

Battle of the Catalaunian Plains and Chalons both are nouns.

Word	Noun	Adjective	Verb	Adverb
Battle of the Catalaunian Plains	Yes	No	No	No
Chalons	Yes	No	No	No

As nouns, Battle of the Catalaunian Plains and Chalons are synonyms defined as:

Battle of the Catalaunian Plains and Chalons: the battle in which Attila the Hun was defeated by the Romans and Visigoths in 451

Other synonyms of Battle of the Catalaunian Plains include Chalons-sur-Marne.

Battle of the Catalaunian Plains (noun)	Chalons (noun)
the battle in which Attila the Hun was defeated by the Romans and Visigoths in 451	the battle in which Attila the Hun was defeated by the Romans and Visigoths in 451