Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “semaphore”

semaphore

noun [U] uk   /ˈsem.ə.fɔːr/ us    /-fɔːr/
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 from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of semaphore?
Add Cambridge dictionaries to your browser to your website

Word of the Day

flair

natural ability to do something well

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More