| sign | any incitement to action |
|---|---|
| sign | an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes |
| sign | be a signal for or a symptom of |
| sign | communicate silently and non-verbally by signals or signs |
| sign | notably out of the ordinary |
| sign | a building from which signals are sent to control the movements of railway trains |
| sign | the position of the football player in the backfield who directs the offensive play of his team |
| sign | (football) the person who plays quarterback |
| sign | the detection that a signal is being received |
| sign | a fire set as a signal |
| sign | a rectangular piece of fabric used as a signalling device |
| sign | the amplitude level of the desired signal |