Rhetorical hyperbole, a figure of speech used in literature and speechwriting to convey an exaggerated statement, can be expressed in various ways by using different synonyms. One such synonym could be a "hyperbolic overstatement," where the same level of exaggeration is implied. Another synonym that can be used is "exaggerated rhetoric," which refers to the language used to express hyperboles. "Linguistic exaggeration" is another term that might be applicable, which might refer to the exaggeration in the language itself. Lastly, one could use "rhetorical exaggeration," where the focus is on the effects of the hyperbole on the argument or message being conveyed. These synonyms can be used interchangeably to enhance the impact of a statement.