Definition that contains signa
- wave signal with the hands or nod
- wink signal by winking
- input signal going into an electronic system
- output signal that comes out of an electronic system
- beckon signal with the hands or nod
- wigwag signal by or as if by a flag or light waved according to a code
- output signal signal that comes out of an electronic system
- flag down signal to stop
- heliograph signal by means of a mirror and the using the sun's rays
- input signal signal going into an electronic system