noun / verb
panel
PAN-ul/ˈpænl/
A distinct flat or bounded section of a larger whole.
A rectangular wooden panel sits beside its opening in the wall.

Etymology
Old French panel meant a piece of cloth, especially a rectangular piece. The idea of a distinct piece extended to a bounded section of a wall, door, or other surface.
In context
the edges of the drywall panel are precisely shaped by specialized machines creating clean and even outlines this step gives the product neat edges making it easier to join and install at construction sites
More examples
- She replaces the cracked panel in the cabinet door.
- The settings panel shows the available options.
- They panel the room with oak.
Forms
panel · panels · paneled · paneling
paneling noun — Wooden sections used to cover walls.