measure word · classifier for meals, scoldings, or periodic occurrences

我今天只吃了一顿饭。

verb, measure word · to stamp one's foot or to kowtow

他在门外顿了顿脚上的雪才进屋。

verb · to arrange or lay out

他把行李在屋角顿好，便坐下来休息。

verb · to stop or pause momentarily

他说话中间顿了一下。

verb · suddenly; at once; immediately

听了这番话，他顿觉豁然开朗。