Synset

a signal that involves visual communication
<noun.communication>

semantic pointers

hypernym

signal, sign, signaling

part holonym

visual communication

hyponym

watch fire light red light, warning light flare, flash flag, signal flag windsock, wind sock, sock, air sock, air-sleeve, wind sleeve, wind cone, drogue stake, post blinker, turn signal, turn indicator, trafficator armband rocket, skyrocket beacon, beacon fire stoplight, brake light barber's pole