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Meaning & Definition of Signal in English

English

Signal

/sɪgnəl/

noun

1. Any nonverbal action or gesture that encodes a message

  • "Signals from the boat suddenly stopped"
    synonym:
  • signal
  • ,
  • signaling
  • ,
  • sign

2. Any incitement to action

  • "He awaited the signal to start"
  • "The victory was a signal for wild celebration"
    synonym:
  • signal

3. An electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes

    synonym:
  • signal

verb

1. Communicate silently and non-verbally by signals or signs

  • "He signed his disapproval with a dismissive hand gesture"
  • "The diner signaled the waiters to bring the menu"
    synonym:
  • sign
  • ,
  • signal
  • ,
  • signalize
  • ,
  • signalise

2. Be a signal for or a symptom of

  • "These symptoms indicate a serious illness"
  • "Her behavior points to a severe neurosis"
  • "The economic indicators signal that the euro is undervalued"
    synonym:
  • bespeak
  • ,
  • betoken
  • ,
  • indicate
  • ,
  • point
  • ,
  • signal

adjective

1. Notably out of the ordinary

  • "The year saw one signal triumph for the labour party"
    synonym:
  • signal

Examples of using

When the input exceeds a certain threshold, an output signal is instantaneously released.
It's a signal of danger.
There is a start signal.