hyperbole

In describing his accomplishments, he's somewhat given to hyperbole. [=he tends to exaggerate his accomplishments]在描述他的成就时，他多少有点夸张。

The customer's letter of complaint was filled with hyperboles [=(more commonly) exaggerations] and outrageous claims.顾客的投诉信里满是夸大之词和蛮横的要求。