A warning light, especially as a traffic signal indicating stop. / A sign of a brothel. / (idiomatic) Denial to proceed; a ruling out of any possibility.

plural of red light

A roadside camera, placed near a stoplight, designed to photograph vehicles that disobey a red traffic light.

An area of a town where prostitution is concentrated.

plural of red light camera

plural of red-light camera

(idiomatic) To advertise oneself as a prostitute.

To pass through the traffic light when the red light is illuminated. / (idiomatic) To enter a restricted area; to trespass. / (idiomatic) To falsely accuse someone of wrongdoing.

plural of red-light district

(law, automotive) An automatic traffic light enforcement camera which captures images of vehicles violating red lights.