Definition of glass noun from the Oxford Advanced Learner's Dictionary

      

    glass

     noun
    noun
    BrE BrE//ɡlɑːs//
     
    ; NAmE NAmE//ɡlæs//
     
     
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    transparent substance
  1. 1  [uncountable] a hard, usually transparent, substance used, for example, for making windows and bottles a sheet/pane of glass frosted/toughened glass a glass bottle/dish/roof I cut myself on a piece of broken glass. The vegetables are grown under glass (= in a greenhouse). see also cut glass, plate glass, stained glass, glazier
  2. for drinking
  3. 2   [countable] (often in compounds) a container made of glass, used for drinking out of a sherry glass a wine glass
  4. 3  [countable] the contents of a glass a glass of sherry/wine/water, etc. He drank three whole glasses.
  5. glass objects
  6. 4  [uncountable] objects made of glass We keep all our glass and china in this cupboard. She has a fine collection of Bohemian glass.
  7. 5[singular] a protecting cover made of glass on a watch, picture or photograph frame, fire alarm, etc. In case of emergency, break the glass and press the button.
  8. for eyes
  9. 6  glasses (North American English also eyeglasses) (old-fashioned or formal spectacles, informal specs especially in British English) [plural] two lenses in a frame that rests on the nose and ears. People wear glasses in order to be able to see better or to protect their eyes from bright light a pair of glasses dark glasses I wear glasses for driving. see also field glasses, magnifying glass, sunglasses
  10. mirror
  11. 7[countable, usually singular] (old-fashioned) a mirror see also looking glass
  12. barometer
  13. 8the glass [singular] a barometer
  14. Word Origin Old English glæs, of Germanic origin; related to Dutch glas and German Glas.Extra examples He could see the light through the frosted glass. He had a small glass of lager with his meal. He heard glasses clinking in the other room. He poured her a fresh glass of sherry. He sat back, glass in hand. I handed her a glass of wine. I put my glass down on the table. She cut her foot on some glass. She had had three glasses of whisky already. She raised the glass to her lips. She sat sipping a glass of champagne. The books were all behind glass. The butler was polishing the brandy glasses. The factory makes safety glass. The floor was littered with fragments of broken glass. The waiter filled their glasses. They clinked glasses, still laughing. We grow fruit under glass= in a glasshouse. We watched the craftsmen blowing glass. a boat made of glass fibre/​fiber a set of crystal glasses a tall glass of milk beer in a pint glass growing fruit under glass the red liquid in his glass the sound of breaking glass watching the Venetian craftsmen blowing glassIdioms
    people (who live) in glass houses shouldn’t throw stones
     
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    (saying) you should not criticize other people, because they will easily find ways of criticizing you
    to set a new, higher standard of quality or performance The factory has raised the bar on productivity, food safety and quality. This latest computer game raises the bar for interface design. The awards go to people who have truly raised the bar. Perhaps the new admission requirements raised the bar too high. opposite lower1 compare set the bar
See the Oxford Advanced American Dictionary entry: glass