Athena vs Pallas Athena

Athena and Pallas Athena both are nouns.

Word	Noun	Adjective	Verb	Adverb
Athena	Yes	No	No	No
Pallas Athena	Yes	No	No	No

As nouns, Athena and Pallas Athena are synonyms defined as:

Athena and Pallas Athena: (Greek mythology) goddess of wisdom and useful arts and prudent warfare; guardian of Athens; identified with Roman Minerva

Other synonyms of Athena include Athene, Pallas, Pallas Athene.

Athena (noun)	Pallas Athena (noun)
(Greek mythology) goddess of wisdom and useful arts and prudent warfare; guardian of Athens; identified with Roman Minerva	(Greek mythology) goddess of wisdom and useful arts and prudent warfare; guardian of Athens; identified with Roman Minerva