a kind of hard substance (as used in windows)
object that reflects an image
Cases of word usage
1) (a building for) a glass container for living fish and water plants (aquarium)
2) a small ball of coloured glass etc with a hole through it for a string or wire (bead)
3) the top edge of a cup, bowl, glass etc (brim)
4) a small piece cut or broken off (from wood, stone, china, glass etc) (chip)
5) (a part of) a building with glass walls and roof, used for growing plants (conservatory)
6) a kind of transparent mineral like glass (crystal)
7) a place where metal or glass is melted and shaped into objects (foundry)
8) an enclosed apparatus with a fire, used for heating metals, making glass etc in a factory (furnace)
9) article made of glass (glassware)
10) like glass in appearance (glassy)