Vad Ă€r surface? Vad Ă€r surface? The outer or the topmost boundary of an object.A material layer constituting such a boundary.Mathematics The boundary of a three-dimensional figure. Mathematics The two-dimensional locus of points located in three-dimensional space.Mathematics A portion of space having length and breadth but no thickness.The superficial or external aspect: "a flamboyant, powerful confidence man who lives entirely on the surface of experienceâ ( Frank Conroy). An airfoil.Relating to, on, or at a surface: surface algae in the water. Relating to or occurring on or near the surface of the earth.Superficial.Apparent as opposed to real.To provide with a surface or apply a surface to: surface a table with walnut; surface a road with asphalt. To rise to the surface.To emerge after concealment.To work or dig a mine at or near the surface of the ground.on the surface To all intents and purposes; to all outward appearances: a soldier who, on the surface, appeared brave and patriotic.