DAILY VOCABULARY WITH PICTURES. GLASS.

• glass
• 1

  transparent material

  [uncountable] a transparent solid substance used for making windows, bottles etc:
• a glass bowl
• a piece of broken glass
• pane/sheet of glass (=a flat piece of glass with straight edges)
• the cathedral's stained glass windows
• 2

  for drinking

  [countable] a container used for drinking made of glass [↪ cup]
• wine/brandy/champagne etc glass
• Nigel raised his glass in a toast to his son.
• 3

  amount of liquid

  [countable] the amount of a drink contained in a glass
• glass of
• She poured a glass of wine.
• 4

  for eyes

  glasses

  [plural] two pieces of specially cut glass or plastic in a frame, which you wear in order to see more clearly [= spectacles]:
• He was clean-shaven and wore glasses.
• I need a new pair of glasses.
• distance/reading glasses
• ! Do not say 'a glasses': She's got nice (NOT a nice) glasses. ➔ dark glasses, field glasses
• 5

  glass objects

  [uncountable] objects which are made of glass, especially ones used for drinking and eating:
• a priceless collection of Venetian glass
• 6

  people in glass houses shouldn't throw stones

   used to say that you should not criticize someone for having a fault if you have the same fault yourself
• 7

  under glass

   plants that are grown under glass are protected from the cold by a glass cover
• 8

  mirror

  [countable] old-fashioned a mirror
• 9

  the glass

  old-fashioned a barometer
• ➔ cut glass, ground glass, looking glass, magnifying glass, plate glass

  ➔ raise your glass

  at raise1 (16), safety glass, stained glass

Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.