The term 'make smooth' can be achieved by using a variety of tools and techniques. Ironing is a process that uses heat to press fabric and remove wrinkles. A PLANE is a tool used to shave off wood or other materials to make them EVEN. Filing is a process of using a metal FILE to remove material from a surface to make it smoother. Paving is a process of laying down asphalt or concrete to create a flat, EVEN surface. Polishing is a process of rubbing a material with an abrasive to create a glossy finish. Sanding is a process of using sandpaper to remove material from a surface to make it smoother. Easing is a process of using a tool to round the edges of a material. Flattening is a process of using a tool to press a material into a flat shape. Evening out is a process of using a tool to make a surface EVEN. Sleeking is a process of using a tool to make a surface smooth. Sandpapering is a process of using sandpaper to remove material from a surface to make it smoother.