B2nounsciencehome
US/biːm/
UK/biːm/
a line of light; also a long, strong piece of wood or metal that supports a roof or building
In context
A beam of sunlight came through the window onto the desk.
The old house has wooden beams across the ceiling.
Switch on your high beam only when there is no car in front.
Words that go with beam
noun + preposition
- beam of lightA narrow beam of light lit up the dark cave.
adjective + noun
- wooden beamA wooden beam fell during the earthquake.
- high beamDrivers should not use high beam in the city.
noun + noun
- laser beamThe scanner uses a laser beam to read the code.
- steel beamWorkers lifted a steel beam into place with a crane.