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- It automatically sends out an overdue signal .
- The other host of signal are control signals .
- They fired the signal agreed upon .
- This attenuates the offside signal .
- The signal will suspend the microprocessor .
- notably out of the ordinary; "the year saw one signal triumph for the Labour party"
- 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"
同义词：bespeak, betoken, indicate, point
- 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"
同义词：sign, signalize, signalise
- any nonverbal action or gesture that encodes a message; "signals from the boat suddenly stopped"
- any incitement to action; "he awaited the signal to start"; "the victory was a signal for wild celebration"
- an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes