As a Noun: 1. The lights at the front and back of a car which are used to show that the car is turning or is about to turn left or right. English = indicators, blinkers. 2. The lights at the front and back of a car which, when both are flashing simultaneously, are used to show that the car is stationary and a hazard to traffic. English = hazard lights. As a Verb or Adjective: 1. To operate the blinkers on a car. 2. To operate the hazard lights on a car.