/ haɪˈpɜːbəli; NAmE -ˈpɜːrb-/ noun
[ U , C , usually sing. ] a way of speaking or writing that makes sth sound better, more exciting, dangerous, etc. than it really is
SYN exaggeration
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WORD ORIGIN
late Middle English : via Latin from Greek huperbolē excess (from huper above + ballein to throw).