a red lamp, used as a traffic signal to mean “stop.”
an order or directive to halt an action, project, etc.: There's a red light on all unnecessary expenses.
a children's running game in which players must stop when “Red light!” is called.
a signal of danger; warning.
Other definitions for red-light (2 of 2)
Informal. to stop or deter by means of or as if with a red light.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use red light in a sentence
Only a portion of the unit Vice is kept within the limits of four redlight districts.
In the South side redlight district but one brand of whiskey can be sold today.
We are standing on the shores of a lake—that lake is one of the redlight districts of Chicago.
The redlight district gets its name because of the lurid, crimson signs that hang above its entrances.
Lust, vice, crime and graft are the deities of Chicagos redlight districts.
British Dictionary definitions for red light
a signal to stop, esp a red traffic signal in a system of traffic lights
a danger signal
an instruction to stop or discontinue
a red lamp in a window of or outside a house indicating that it is a brothel
(as modifier): a red-light district
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012