一旦

yī dàn
HSK 5
in case (sth happens), if
conjunction

Example Sentences

一旦你来了，我就很高兴。
yīdàn nǐlái le ， wǒ jiù hěn gāoxìng 。
Once you arrive, I will be very happy.
一旦下雨，我们就不去公园了。
yīdàn xiàyǔ ， wǒmen jiù bùqù gōngyuán le 。
If it rains, we won't go to the park.
一旦完成这个任务，你就可以休息了。
yīdàn wánchéng zhègè rènwù ， nǐ jiù kěyǐ xiūxī le 。
Once you finish this task, you can rest.

Individual Characters

HSK 1
一yī
one, 1, single, a (article)
旦dàn
(literary) dawn, daybreak

Words Starting With 一

一起yī qǐ
in the same place; together; with; altogether (in total)
一会儿yī huì r
a while
一共yī gòng
altogether
一定yī dìng
surely; certainly; necessarily; fixed; a certain (extent etc); given; particular; must
一样yī yàng
same; like; equal to; the same as; just like

Words Ending With 旦

元旦yuán dàn
New Year's Day

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Public Lists with 一旦

HSK 5
All words for the HSK 5 test
Time & Dates
Days of the week, months, seasons, telling time, and related expressions.
Advanced HSK5 Terms
Vocabulary commonly seen in HSK5 practice, bridging mid-high level usage.