panel sheet that forms a distinct (usually flat and rectangular) section or component of something
wall an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure; "the south wall had a small window"; "the walls were covered with pictures"
pane -
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.
pane -
A compartment of a surface, or a flat space; hence, one side or face of a building.