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semaphore noun

  /ˈsɛm.əˌfoɹ/ , /ˈsɛm.əˌfɔː/
  • A visual system for transmitting information using the above equipment; especially, by means of two flags held one in each hand, using an alphabetic and numeric code based on the position of the signaller's arms; flag semaphore.
 semaforo, semaforo marittimo
flag semaphore
alfabeto semaforico
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