red light

[/rɛd laɪt/]
nounpl: red lights
luz vermelha
1. A traffic signal displaying red color that indicates vehicles must stop
He stopped at the red light and waited for it to turn green.
Ele parou na luz vermelha e esperou ficar verde.
2. A warning signal or indication that something is wrong or should not proceed
The irregular financial reports were a red light for investors.
Os relatórios financeiros irregulares foram um sinal de alerta para os investidores.
3. A district or area associated with prostitution (idiomatic usage)
The red light district is known for its nightlife and adult entertainment.
O bairro da luz vermelha é conhecido pela sua vida noturna e entretenimento adulto.
In Brazilian culture, running red lights is a common traffic violation, especially in major cities like São Paulo and Rio de Janeiro. The term 'luz vermelha' is universally understood. The phrase 'bairro da luz vermelha' (red light district) refers to areas in cities like Rio's Lapa neighborhood. In American culture, 'red light' as a warning metaphor is deeply embedded in business and social contexts, often used to indicate danger or caution.
Synonyms / Sinônimos
stop signalwarning signcaution indicatorred flag
Antonyms / Antônimos
green lightgo signalclearanceapproval

Regional Variations

General Brazilian
luz vermelha
Standard term used nationwide for traffic lights
Rio de Janeiro
luz vermelha / semáforo
Both terms commonly used; 'semáforo' is slightly more formal
São Paulo
luz vermelha / sinal vermelho
'Sinal vermelho' is also used colloquially
Portugal
semáforo vermelho / sinal vermelho
Portuguese prefer 'semáforo' over 'luz vermelha'

Related Words

traffic lightamber lightgreen lighttraffic signalstop sign

Related Idioms & Phrases

give someone the red light - to reject or refuse someone
see red - to become very angry
red light district - area known for prostitution and adult entertainment
red light special - discounted merchandise or special offer
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