pane

noun

1. An individual sheet of glass in a window, door, etc.

   “We need doubling glazing as this window pane lets out lots of heat.”

2. A portion of a user interface that typically makes up part of a larger window and may be docked or snapped into position.
3. A division; a distinct piece or compartment of any surface.
4. A square of a checkered or plaid pattern.
5. One of the openings in a slashed garment, showing the bright colored silk, or the like, within; hence, the piece of colored or other stuff so shown.
6. A compartment of a surface, or a flat space; hence, one side or face of a building.

   “An octagonal tower is said to have eight panes.”

7. A subdivision of an irrigated surface between a feeder and an outlet drain.
8. One of the flat surfaces, or facets, of any object having several sides.
9. One of the eight facets surrounding the table of a brilliant-cut diamond.
10. (alt-of, alternative)Alternative spelling of peen.

verb

1. (transitive)To fit with panes.

   “For example, by paning the glass horizontally (putting a single horizontal slat through the middle of the window), it almost looks as if you installed two windows.”