sheet glass cut in shapes for windows or doors
"The storm damaged several panes of the old window, leaving holes where the broken glass used to be."
street name for lysergic acid diethylamide
"The underground dealer sold a single pane of LSD to the nervous buyer in the alleyway."
An individual sheet of glass in a window, door, etc.
"The storm broke several panes of glass in the front window."
In plain English: A pane is a single piece of glass set into a window frame.
"The child cracked the glass pane while trying to open the window."
Usage: Do not confuse this with "pain," which refers to physical suffering or distress. It is also distinct from "plane," the tool used for smoothing wood.
To fit with panes.
"They decided to replace the old glass door by fitting it with new, clear panes."
The word "pane" comes from the Latin word for fabric or cloth via Middle English. It originally referred to a piece of material before its meaning shifted specifically to glass set in a window frame.