glass Definition

1. A hard brittle non-crystalline material that is usually transparent or translucent, used to make windows, bottles and other containers, cooking utensils, lenses, etc.
2. An article made from this, eg a mirror, a lens or, especially, a drinking cup.
3. The amount held by a drinking glass.

Form: glassful (also)
4. Articles made of glass.

Example: a collection of glass
Form: glassware (also)
5. Spectacles.

Form: glasses

glassed, glassing
1. To supply or cover something with glass.