glass

1 glass /ˈglæs/ Brit /ˈglɑːs/ noun
plural glasses
1 glass
/ˈglæs/ Brit /ˈglɑːs/
noun
plural glasses
Britannica Dictionary definition of GLASS
1 
[noncount] : a hard usually transparent material that is used for making windows and other products — often used before another noun — see also plate glass, stained glass
2 
[count]
a  : a drinking container made out of glass
◊ The expression raise a glass or raise your glasses is used to tell people to hold up their glasses and drink a toast as a way to wish someone happiness, success, etc.
b  : the amount held by a glass container
3 
glasses [plural] : a pair of glass or plastic lenses set into a frame and worn over the eyes to help a person see
— see also field glasses, magnifying glass, opera glasses

people who live in glass houses shouldn't throw stones

— used to say that people who have faults should not criticize other people for having the same faults

under glass

: in a glass container

— glassful

/ˈglæsˌfʊɫ/ Brit /ˈglɑsˌfʊɫ/ noun, plural glassfuls [count]
2 glass /ˈglæs/ Brit /ˈglɑːs/ verb
glasses; glassed; glassing
2 glass
/ˈglæs/ Brit /ˈglɑːs/
verb
glasses; glassed; glassing
Britannica Dictionary definition of GLASS
[+ object]
: to fit, protect, or enclose (something) with glass — usually + in