一顿 yīdùn once Definitions Defs Origin Strokes Stroke Words Sentences Sents yīdùn once 一 yī numeral one one; the number 1; single; alone顿 頓 dùn measure word [meal/bout] measure word for meals, beatings, or scoldingsyīdùn to pause 一 yī adverbnumeral [suddenness] Used before a verb to indicate that an action or situation occurs suddenly or unexpectedly.顿 頓 dùn verb to pause to pause; to stop briefly; to stayyīdùn all at once 一 yī numeral whole whole; entire; throughout; all顿 頓 dùn verb to arrange to arrange; to settle; to put in order; to tidy up