An originator is someone who creates something, such as an idea, a product, or a concept. A synonym for originator is innovator, which is someone who introduces new methods, ideas, or products. Other synonyms for originator include creator, inventor, pioneer, and founder. A creator is someone who brings something into existence, while an inventor is someone who devises or creates something new. A pioneer is someone who initiates or leads the way in a new field, while a founder is someone who establishes an organization or institution. Overall, these synonyms share a common thread of creativity, ingenuity, and originality.