red light
noun
1.
a red lamp, used as a traffic signal to mean “stop.”.
2.
an order or directive to halt an action, project, etc.:
There's a red light on all unnecessary expenses.
3.
a children's running game in which players must stop when “Red light!” is called.
4.
a signal of danger; warning.
Origin
1840-50
red-light
[
red
-
lahyt
]
/ˈrɛdˈlaɪt/
verb (used with object)
,
red-lighted,
red-lighting.
1.
Informal.
to stop or deter by means of or as if with a red light.
Origin
1895-1900
Examples from the web for
red light
Printer then flashes
red light
, demanding new cartridge.
He could stay in the fort, the red blanket casting a
red light
on everything inside.
Or maybe you've stopped next to them at a
red light
and they're checking emails.
The next time the
red light
of violence shone out it seemed of no importance, an irrelevant horror.
Then he was struck while walking across an avenue by a car running a
red light
.
When this current returns to the box, it's amplified and used to turn a
red light
-emitting diode on and off.
Light emitted by oxygen is shown as blue, hydrogen emission is shown as green, and nitrogen emission as
red light
.
It uses far
red light
that's invisible to the animals.
If you look closely beyond the bridge, you will see a
red light
.
On city streets, it's legal to right at a
red light
after stopping.
British Dictionary definitions for
red light
red light
noun
1.
a signal to stop, esp a red traffic signal in a system of traffic lights
2.
a danger signal
3.
an instruction to stop or discontinue
4.
a red lamp in a window of or outside a house indicating that it is a brothel
(
as modifier
):
a red-light district