interpreter

noun

1.
someone who mediates between speakers of different languages
walstod translator
Derived from:
interpret
2.
someone who uses art to represent something
Derived from:
interpret
3.
an advocate who represents someone else's policy or purpose
forespeaker representative spokesperson voice
4.
(computer science) a program that translates and executes source language statements one line at a time
interpretive program
Derived from:
interpret