A rhetorical and literary method in which a writer or speaker deliberately makes use of exaggeration and overstatement for emphasis and effect is called Hyperbole.
Hyperbole uses exaggeration as a rhetorical tool or discernment of speech. In rhetoric, it's also once in a while called auxesis.
Poetry and oratory, emphasize, conjuring up sturdy feelings, and creating sturdy impressions. As a discern of speech, it also includes now no longer supposed to be taken literally.
Thus, Hyperbole uses exaggeration as a rhetorical tool or discernment of speech.
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