a flat desk.
a plane surface.
acres of level farmland.
any line joining two points on a plane lies wholly on that plane.
he lived on a worldly plane.
plane the top of the door.
skirts sewn with fine flat seams.
the cabinetmaker used a plane for the finish work.
the flight was delayed due to trouble with the airplane.
The machine shaved off fine layers from the piece of wood.
we will refer to the plane of the graph as the X-Y plane.