旦

dàn

(literary) dawn; daybreak; dan, female role in Chinese opera (traditionally played by specialized male actors)

Ancient forms

3 forms

Glyphs: Wikimedia Commons, public domain.

dàn dan4

(literary) dawn; daybreak
dan, female role in Chinese opera (traditionally played by specialized male actors)

yīdàn 一旦 guò 过 le 了 hé 河 , nǐ 你 jiù 就 ānquán 安全 le 了。

Once across the river, you are safe.
Yuándàn 元旦 shì 是 yī 一 nián 年 de 的 guānjiàn 关键。

New Year's Day is the key to the year.
Yuándàn 元旦 jiù 就 zài 在 yǎnqián 眼前。

New Year's Day is close at hand.
tā 她 yīdàn 一旦 kāishǐ 开始 shuōhuà 说话， jiù 就 hěn 很 nán 难 ràng 让 tā 她 tíng 停 xiàlai 下来。

Once she starts talking, its hard to stop her.