nouns
someone who mediates between speakers of different languages
someone who uses art to represent something
"his paintings reveal a sensitive interpreter of nature"; "she was famous as an interpreter of Shakespearean roles"
is a type of (narrower)
a human being
"there was too much for one person to do"
an advocate who represents someone else's policy or purpose
"the meeting was attended by spokespersons for all the major organs of government"
(computer science) a program that translates and executes source language statements one line at a time