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A road signal for directing vehicular traffic by means of colored lights, typically red for stop, green for go, and yellow for proceed with caution. Also called stoplight, traffic signal.
one of a set of coloured lights placed at crossroads, junctions, etc, to control the flow of traffic. A red light indicates that traffic must stop and a green light that it may go: usually an amber warning light is added between the red and the green
a set of electrically operated signal lights used to direct or control traffic at intersections.
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|Noun||1.||traffic light - a visual signal to control the flow of traffic at intersections|
light - a visual warning signal; "they saw the light of the beacon"; "there was a light at every corner"
red light - the signal to stop
yellow light - the signal to proceed with caution