To rise partly out of the water, as a hydroplane does at high speeds, To smooth or finish with a plane, transitive verb_ To make smooth; to level; to pare off the inequalities of the surface of, as of a board or other piece of wood, by the use of a plane, To efface or remove, noun_ (Astron.) An ideal surface, conceived as coinciding with, or containing, some designated astronomical line, circle, or other curve, A carpenter's tool with an adjustable blade for smoothing and leveling wood, A flat or level surface