There are several synonyms for the word "gearmaker," including "gear manufacturer," "gear producer," "gear fabricator," and "gear builder." These terms all refer to an individual or company that specializes in creating gears, which are essential components in mechanical systems. Other related synonyms may include "machinist," "mechanic," or "engineer." Depending on the context in which the term is used, additional synonyms might include "gear designer," "gear engineer," or "gear technician." Overall, these synonyms help to convey a specific type of expertise and specialization in the field of mechanical engineering and manufacturing.