spokesperson vs interpreter

spokesperson and interpreter both are nouns.

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

As nouns, spokesperson and interpreter are synonyms defined as:

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

Other synonyms of spokesperson include representative, voice.

spokesperson (noun)	interpreter (noun)
an advocate who represents someone else's policy or purpose	(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
	someone who mediates between speakers of different languages
	someone who uses art to represent something