nega, refuta, invalida, anula
1. to deny the existence or truth of something
The new evidence negates his previous testimony.
As novas evidências negam seu depoimento anterior.
2. to make something ineffective or invalid
Using a seatbelt negates some of the danger in car accidents.
O uso do cinto de segurança anula parte do perigo em acidentes de carro.
3. to nullify or cancel out
This court ruling negates the previous decision.
Esta decisão judicial invalida a decisão anterior.
The word 'negates' is predominantly used in formal contexts such as legal proceedings, academic discussions, and formal debates in both English and Portuguese. In Brazilian Portuguese, 'nega' is the most common translation in everyday speech, while 'refuta' emphasizes logical refutation and 'invalida' emphasizes legal or official nullification.
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