semaphore

Noun
  1. An apparatus for visual signaling with lights or mechanically moving arms (synset 104178269)
    is a type of: apparatus, setup - equipment designed to serve a specific function
Verb
  1. Send signals by or as if by semaphore (synset 201042150)
    is a type of: sign, signal, signalise, signalize - communicate silently and non-verbally by signals or signs
  2. Convey by semaphore, of information (synset 201042030)
    is a type of: communicate, intercommunicate - transmit thoughts or feelings

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