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beam - definition and synonyms


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noun [countable]     beam pronunciation in American English
Word Forms
  1. 1
    a long thick piece of wood, metal, or concrete that supports a roof

    a barn with low oak beams

  2. 2
    physics a line of light or other form of energy

    the beam of the car headlights

    a laser beam

  3. 3
    a wide happy smile

    A beam of happiness spread over her face.

    Synonyms and related words
  4. 5
    the widest part of a ship from one side to the other

Open Dictionary


a rise in the level of a stream or river

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