| SIG | notably out of the ordinary |
|---|---|
| SIG | a building from which signals are sent to control the movements of railway trains |
| SIG | the position of the football player in the backfield who directs the offensive play of his team |
| SIG | (football) the person who plays quarterback |
| SIG | the detection that a signal is being received |
| SIG | a fire set as a signal |
| SIG | a rectangular piece of fabric used as a signalling device |
| SIG | the amplitude level of the desired signal |
| SIG | a fire set as a signal |
| SIG | the ratio of signal intensity to noise intensity |
| SIG | the ratio of signal intensity to noise intensity |
| SIG | the ratio of signal intensity to noise intensity |