interpreter vs spokesperson

interpreter and spokesperson both are nouns.

Word	Noun	Adjective	Verb	Adverb
interpreter	Yes	No	No	No
spokesperson	Yes	No	No	No

As nouns, interpreter and spokesperson are synonyms defined as:

interpreter and spokesperson: an advocate who represents someone else's policy or purpose

Other synonyms of interpreter include representative, voice.

interpreter (noun)	spokesperson (noun)
(computer science) a program that translates and executes source language statements one line at a time	an advocate who represents someone else's policy or purpose
an advocate who represents someone else's policy or purpose
someone who mediates between speakers of different languages
someone who uses art to represent something