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English definition of “signal”

signal

verb [I, T]
 
 
/ˈsɪɡnəl/ (present participle mainly UK signalling, past tense and past participle signalled, present participle US signaling, past tense and past participle signaled)
ACTION to make a movement that gives information or tells people what to do: He signalled for them to be quiet. [+ to do sth] He signalled the driver to stop.Gestures and gesturing in general
INTENTION to show that you intend or are ready to do something: [+ (that)] The US signalled that they were ready to enter talks.Signs, signals and symbolsSpecific signs and symbols
(Definition of signal verb from the Cambridge Learners Dictionary © Cambridge University Press)
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