Pumicing is a process of smoothing or polishing a surface using a pumice stone. However, there are several other synonyms for the same activity which include grinding, abrading, smoothing, burnishing, buffing, rasping, honing, sanding, and rubbing. Each of these terms denotes a different approach to the task and is often dependent on the material being worked on and the tool being used. Grinding, for instance, involves using an abrasive material to remove excess material while honing involves refining a surface to precision. Similarly, rubbing or burnishing is a traditional technique of smoothing surfaces using hand pressure and natural materials such as stones.