Signal for Meaning in English
expression
Definition
To make a gesture, sound, or action to indicate something should begin or happen, or to give someone a sign to do something.
Usage & Nuances
Usually used when giving a physical gesture ('signal for the waiter'), or to indicate the start of something ('signal for the race to begin'). It can be informal or neutral. Often followed by an action: 'signal for help', 'signal for silence'. Not interchangeable with 'signal to' (which usually takes a person, e.g., 'signal to her').
Example Sentences
He waved to signal for a taxi.
basic
Please signal for help if you need it.
basic
The referee will signal for the match to begin.
basic
She caught my eye to signal for me to come over.
natural
Let’s wait until he signals for us before we leave.
natural
The lights flickered to signal for everyone to be quiet.
natural