A circular argument is a type of logical fallacy in which the conclusion is already assumed in the premise. This creates a loop in reasoning that fails to provide evidence or support for the argument. Synonyms for the term include "vicious circle," "begging the question," "circular reasoning," "talking in circles," and "circular logic." These phrases are often used interchangeably to describe the same type of fallacious argument. In order to avoid circular arguments, it is important to provide evidence and support for your claims, rather than assuming the conclusion as a starting point.