Simply plug your letters into the Search and Get definitions for English words.
noun : SIGNAL
) 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 ;
verb : SIGNAL
Adjective : SIGNAL
) notably out of the ordinary; "the year saw one signal triumph for the Labour party" ;
See more about : SIGNAL