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Semaphore (lit. lirik lagu aftershine aku ikhlas 'apparatus for signalling'; from Ancient Greek σῆμα (sêma) 'mark, sign, token', and Greek -φόρος (-phóros) 'bearer, carrier') is the use of an apparatus to create a visual signal transmitted over distance. lirik lagu aftershine aku ikhlas A semaphore can be performed with devices including: fire, lights, flags, sunlight, and moving arms