An optimizer is someone or something that improves efficiency, effectiveness, or quality. There are many synonyms for this word, depending on the context in which it is used. For example, in the field of computer science, an optimizer might also be called a compiler. In medicine, an optimizer could be a medical professional who optimizes a patient's treatment plan. In business, an optimizer might be a consultant or strategist who helps a company increase profitability. Other synonyms for optimizer include enhancer, perfecter, improver, and booster. Regardless of the specific term used, an optimizer is always focused on finding ways to make something better and more productive.