The word "works at" can be replaced by a variety of synonyms, depending on the context. Some options include "employs," "occupies," "holds a position," "is employed by," "serves in," "is a member of," "performs duties at," "carries out tasks at," "has a job at," and "earns a living through." These synonyms can be used interchangeably in different situations to convey the idea that someone is employed or involved in a particular job or career. By using these synonyms, writers can add variety and interest to their language, while staying true to the intended meaning.