semaphore
noun [U] /ˈsem.ə.fɔːr/
/-fɔːr/ Definition
› a system of communication using two flags held in your hands that are moved into different positions to represent different letters, numbers, or symbolsSpecific signs and symbolsSigns, signals and symbols
(Definition of semaphore noun from the Cambridge Advanced Learner's Dictionary & Thesaurus
© Cambridge University Press)
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