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Another word for semaphore

  1. To communicate by means of such devices as lights or signs

      1. To signal to stop:
      2. To signal with or as with a flag; esp., to signal (the driver of a vehicle) to stop
      3. To signal with or as if with a flag.
      1. To make known or communicate (information) by signals
      2. To cause an effect in (a cell) by the release of a chemical, such as a neurotransmitter or hormone.
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