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
a container used for drinking made of glass [↪ cup]
Nigel raised his glass in a toast to his son.
the amount of a drink contained in a glass
amount of liquid[countable]
She poured a glass of wine.
two pieces of specially cut glass or plastic in a frame, which you wear in order to see more clearly [= spectacles]: ! Do not say 'a glasses': She's got nice (NOT a nice) glasses. ➔ dark glasses, field glasses
He was clean-shaven and wore glasses.
I need a new pair of glasses.
objects which are made of glass, especially ones used for drinking and eating:
a priceless collection of Venetian glass
used to say that you should not criticize someone for having a fault if you have the same fault yourself
plants that are grown under glass are protected from the cold by a glass cover