stoplight

1. A red light on the rear of a motor vehicle that signals when the brakes are applied to slow or stop (synset 107280695)
   is a type of: visual signal - a signal that involves visual communication
   is a part of: brake system, brakes - a braking device consisting of a combination of interacting parts that work to slow a motor vehicle
   same as: brake light
2. A visual signal to control the flow of traffic at intersections (synset 106887235)
   is a type of: light - a visual warning signal
   subtypes:

   • go-ahead, green light - a signal to proceed
   • red light - the signal to stop
   • yellow light - the signal to proceed with caution
   same as: traffic light, traffic signal

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