signal is the dictionary form of signalling Definition of signal
signal has definitions from the fields of physics,electricity
1
[ noun ] any communication that encodes a message

Synonyms

sign signaling

Examples

"signals from the boat suddenly stopped"

2
[ verb ] communicate silently and non-verbally by signals or signs

Examples

"He signed his disapproval with a dismissive hand gesture" "The diner signaled the waiters to bring the menu"

3
[ verb ] be a signal for or a symptom of

Examples

"These symptoms indicate a serious illness" "Her behavior points to a severe neurosis" "The economic indicators signal that the euro is undervalued"

4
[ noun ] any incitement to action

Examples

"he awaited the signal to start" "the victory was a signal for wild celebration"

5
[ noun ] (physics,electricity) an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes
6
[ adjective ] notably out of the ordinary

Examples

"the year saw one signal triumph for the Labour party"

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