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|Noun||1.||visual signal - a signal that involves visual communication|
signal, signaling, sign - any nonverbal action or gesture that encodes a message; "signals from the boat suddenly stopped"
visual communication - communication that relies on vision
watch fire - a fire lighted at night as a signal
light - a visual warning signal; "they saw the light of the beacon"; "there was a light at every corner"
air sock, air-sleeve, wind cone, wind sleeve, wind sock, windsock, drogue, sock - a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind
stake, post - a pole or stake set up to mark something (as the start or end of a race track); "a pair of posts marked the goal"; "the corner of the lot was indicated by a stake"
trafficator, turn indicator, turn signal, blinker - a blinking light on a motor vehicle that indicates the direction in which the vehicle is about to turn
armband - worn around arm as identification or to indicate mourning
skyrocket, rocket - propels bright light high in the sky, or used to propel a lifesaving line or harpoon
brake light, stoplight - a red light on the rear of a motor vehicle that signals when the brakes are applied to slow or stop
barber's pole - striped pole outside a barbershop