a luz vermelha

the red light

→ a
phrase Rare #31,570
the red light A feminine noun phrase referring to a red light. Depending on context, it can also refer to a red warning light or signal.
PO: A luz vermelha indica que há um problema.
EN: The red light indicates that there is a problem.

Ligue a luz vermelha na favela!

Turn on the red light in the favela!

— Tropa de Elite (2007)

Por que apagaram a luz vermelha?

Why did they turn off the red light?

— O Poço (2019)

Ligar a luz vermelha.

Turn on the red light.

— O Barco: Inferno no Mar (1981)

Vi a luz vermelha.

I saw the red light.

Ligue a luz vermelha.

Turn on the red light.

— O Barco: Inferno no Mar (1981)

Apagaram a luz vermelha.

They turned off the red light.

— O Poço (2019)

A luz vermelha está ligada?

Is the red light on?

— O Carteiro e o Poeta (1994)