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glass

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noun American English pronunciation: glass /ɡlæs/ 
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singularglass
pluralglasses
 
  1. 1
    [uncountable] a hard clear substance used for making objects such as windows or bottles

    car windows made of bulletproof glass

    the sound of breaking glass

    slivers/shards of glass (=small broken pieces):

    She had six slivers of glass removed from her cheek.

    pane/sheet of glass:

    Each pane of glass costs several hundred dollars.

  2. 2
    [countable] a small container made of glass used for a drink

    a wine/brandy/beer glass

    He raised the glass to his lips and drained it in one gulp.

    1. a.
      the liquid in a glass, or the amount of liquid that a glass contains
      glass of:

      She drank three glasses of milk.

      Ramon poured himself a tall glass of orange juice.

  3. 3
    [uncountable] attractive objects made out of glass

    a beautiful collection of Italian glass

  4. 5

    the glass

    [countable] British old-fashioned a barometer

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