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Semaphore Signals and Code Secrets is a medium crossword puzzle with 9 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.

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Semaphore Signals and Code Secrets
Moderate difficulty suitable for most players
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Across
  • 1. Transmission used to convey information
  • 3. Device or person that interprets coded messages
  • 4. Code of dots and dashes for telegraphy
  • 6. A mysterious coded machine often deciphered
  • 7. Code with only two possible values, often used in cryptography
Down
  • 2. Hidden information meant to be kept unknown
  • 5. Visual signaling system using flags or lights
  • 8. Method to encrypt or conceal writing
  • 9. Piece of cloth waved to send a message
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