stoplight

/ˈstɑpˌlaɪt/
noun
  1. A set of colored lights (red, yellow, green) at a road intersection that controls traffic flow.
    • The stoplight at the busy intersection helps prevent accidents.
    • Wait for the stoplight to turn green before crossing the street.
    • He ran a red stoplight and got a ticket from the police.
  2. A red light on the back of a vehicle that lights up when the brakes are applied, warning drivers behind.
    • Always check your stoplights before a long road trip.
    • One of the stoplights on my car is broken, so I need to replace the bulb.
    • I saw her stoplight come on, so I knew she was slowing down.
Synonyms
What does "stoplight" mean? | whatsthatwordmean | whatsthatwordmean