noun / verb
glass
GLASS/ɡlæs/
A hard, often transparent material made for windows and containers.
The tumbler, window pane, and bottle are made of clear glass.

Etymology
Old English glæs already named both the material and a vessel made from it. The selected meaning preserves the material sense, while “a glass” carries on the related use for an object made of glass.
In context
the worst techniques to do is especially on a window like this is to go side pulls like so this you can just leave so many lines coming across the glass
More examples
- Broken glass covers the kitchen floor.
- Frosted glass lets light through while providing privacy.
- They plan to glass in the porch before winter.
Forms
glass · glasses · glassed · glassing
glassy adjective — Smooth and shiny like glass.
glassware noun — Objects made of glass, especially drinking containers.