translator vs mediator

translator and mediator both are nouns.

Word	Noun	Adjective	Verb	Adverb
translator	Yes	No	No	No
mediator	Yes	No	No	No

As nouns, mediator is a hypernym of translator; that is, mediator is a word with a broader meaning than translator:

Other hypernyms of translator include go-between, intercessor, intermediary, intermediator.

translator (noun)	mediator (noun)
a program that translates one programming language into another	a negotiator who acts as a link between parties
someone who mediates between speakers of different languages
a person who translates written messages from one language to another