Definition of high beam in English:

high beam

noun

North American
  • 1The brightest setting of a vehicle's headlights; full beam.

    • ‘I still see four and five people riding on one bike - almost none are wearing helmets, but their headlights are on high beam so maybe we are halfway there.’
    • ‘On the way to pick her up from her apartment, I was tailed by this black Porsche Cayenne with its headlights on high beam.’
    • ‘Then I switched on the headlights to a high beam.’
    • ‘I spent the rest of the night looking like a startled rabbit contemplating an on-rushing truck with its lights on high beam.’
    • ‘I also had my headlight on high beam, which is recommended by the Motorcycle Safety Foundation.’
    1. 1.1high beams The headlights of a vehicle when set on high beam.
      ‘glare from the high beams of a car coming up behind them’