The best replacement for interpreter is translator.

The best alternatives to interpreter are rated as following:
★★★★★  translator
★★★★★  compiler
★★  interpretor
★  virtual machine
★  jit
★  translation
★  emulator
★  compiler ppt
★  signer
★  medical translator
  jit compiler
  guide
  assembler
  parser
  java compiler
  translator definition
  medical interpreter
  compiler language
  court interpreter

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Other search terms related to interpreter and their ratings are:
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interpreter
translator
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