The phrase "sets to" is often used to indicate that someone is beginning or embarking on a task or activity. Some synonyms for "sets to" include "starts," "begins," "commences," "embarks," "initiates," and "launches." All of these words convey a sense of beginning or starting something new. They can be used in a variety of contexts, from starting a new project at work to beginning a workout routine. Each synonym has slightly different nuances and connotations, so choosing the right word depends on the specific situation and tone desired. Nonetheless, these options provide flexibility and variety in expressing the idea of beginning anew.