commissar vs political commissar

commissar and political commissar both are nouns.

Word	Noun	Adjective	Verb	Adverb
commissar	Yes	No	No	No
political commissar	Yes	No	No	No

As nouns, commissar and political commissar are synonyms defined as:

commissar and political commissar: an official of the Communist Party who was assigned to teach party principles to a military unit

commissar (noun)	political commissar (noun)
an official of the Communist Party who was assigned to teach party principles to a military unit	an official of the Communist Party who was assigned to teach party principles to a military unit