Marbleizing is a term used to describe the process of creating a marble-like pattern or texture on a surface. However, there are various other terms or synonyms that can be used instead of marbleizing. Some of the common synonyms for marbleizing include veining, swirled, agate, speckled, streaked, variegated, and mottled. While some of these words refer to the pattern or texture created by marbleizing, others describe the appearance of materials that may have been used for the process, such as agate. All in all, these synonyms can help to add color, texture, and interest to any surface and can be used interchangeably with the term "marbleizing".