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English definition of “glass”

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glass

noun [C/U]  /ɡlæs/ us  
a hard, transparent material that is used to make windows, bottles, and other objects A glass is a small container of glass, usually round and without a handle, for holding a liquid that you can drink, or the liquid held by such a container: [C] She poured some milk into a glass. [C] May I have a glass of water?

glass

adjective [not gradable]  /ɡlæs/ us  
made of glass: a glass jar/bottle
(Definition of glass from the Cambridge Academic Content Dictionary © Cambridge University Press)
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