The word "affect" means to have an impact or influence on someone or something. There are several synonyms for this word, each with a slightly different meaning. For example, "influence" and "impact" are both synonyms for "affect," but they carry a similar but distinct sense of power or force. "Mood" is another synonym that is often used to describe the way something or someone affects the emotions of others. Other synonyms for "affect" include "modify," "transform," "alter," and "change." Each of these synonyms offers a unique perspective on the way that outside forces can impact our lives and the people around us.