signal
     adj : notably out of the ordinary; "the year saw one signal
           triumph for the labour party"
     n 1: any communication that encodes a message; "signals from the
          boat suddenly stopped" syn: signaling, sign
     2: any incitement to action; "he awaited the signal to start";
        "the victory was a signal for wild celebration"
     3: an electric quantity voltage or current or field strength
        whose modulation represents coded information about the
        source from which it comes
     v 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" syn: sign, 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" syn: bespeak, betoken, indicate, point
     also: signalling, signalled
see also:
signaling sign signalize signalise bespeak betoken 
indicate point signalling signalled 

signalled
     see signal
see also:
signal