“夸大其词”的意思是说话的时候把事情说得比真实的大很多，不太真实。

"夸大其词" means to describe something much bigger than it really is, not very truthful.

我们说别人夸大其词，就是说他讲得太过了，让人不能完全相信。

When we say someone 夸大其词, it means they are exaggerating too much, making it hard to fully believe them.