noun

signal

signal, cue, indication

Wait for the green signal to cross.

Wait for the green signal to cross.

The phone has a weak signal here.

The phone has a weak signal here.

a signal for ((sth.)) / to-inf an indication for (sth.) to happen The whistle was a signal for the race to start.

Synonyms: cue, sign, indication, gesture

From Latin 'signalis' (relating to a sign), from 'signum' (sign). It's a derivative of 'sign'.

Think of a traffic signal or a mobile phone signal – something that transmits information.

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