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BNC: 25064 COCA: 31211

semaphore

Word family
Related topics: Communications
sem·a·phore /ˈseməfɔː $ -fɔːr/ noun [uncountableU]  
TCa system of sending messages using two flags, which you hold in different positions to represent letters and numbers 旗语
Examples from the Corpus
Origin semaphore
(1800-1900) Greek sema sign + -phoros carrying
sem·a·phore noun
Chinese
Syllable
Corpus
BNC: 25064 COCA: 31211
BNC: 25064 COCA: 31211
BNC: 25064 COCA: 31211
semaphore
Codes and codification: alphanumeric, break, CAPTCHA...

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