Levigator is a term that is commonly used in the field of pottery and ceramics. It refers to a tool that is used for smoothing and polishing rough clay surfaces. However, there are several other words that can be used synonymously with levigator. These include "abrasive," "grinding tool," "sanding tool," "polisher," and "finishing tool." Each of these words has a slightly different connotation, but they all refer to tools that are used to smooth, polish and refine surfaces. Ultimately, the choice of word depends on the specific context and the type of tool being used, but all of these terms can be used interchangeably with levigator.