How to Say ‘It's a deal!’ in Traditional Chinese
一言為定！
yī yán wèi dìng
[yì yán wéi dìng]
💬 Usage Tip: This is a fixed four-character saying, (yì yán wéi dìng), literally "one word makes it settled". 一 is read (yì) because the next syllable has a rising tone.
Phrase Breakdown
一言為定
yī yán wèi dìng
[yì yán wéi dìng]
it's a deal
Idiom meaning a promise is settled with one word; used to confirm an agreement.
明天見面，一言為定。
We'll meet tomorrow, it's a deal.
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