Meaning of 一旦
一旦 means in a single day; overnight; in a very short time; indefinite future time; one day; some day (referring to a past event). Pronounced yī dàn. HSK 5.
- in a single day; overnight; in a very short time
- indefinite future time; one day; some day (referring to a past event)
- if ever; in case; should one day (referring to a hypothetical future)
Definitions & Examples
Bǎi百
nián年
jī基
yè业
，
huǐ毁
yú于
yī一
dàn旦
。
A legacy built over a century was destroyed overnight.
Shèng胜
lì利
de的
chéng成
guǒ果
lái来
zhī之
bù不
yì易
，
qiè切
wù勿
lìng令
qí其
sàng丧
shī失
yú于
yī一
dàn旦
。
The fruits of victory are hard-won; do not let them be lost in an instant.