一旦 yídàn once; in case

HSK 5 HSK 3.0 · Level 5 Practise with 一旦 →

Stroke order

一旦 is written in 6 strokes across 2 characters.

一旦 — the Chinese character for once; in case (yídàn), stroke diagram — Stroke diagram for 一旦 — once; in case

一 — 1 stroke
旦 — 5 strokes

Senses

in case (sth happens)
if
once (sth happens, then...)
when
in a short time
in one day

Characters in 一旦

一 yī — one; single; a (article)
旦 dàn — (literary) dawn; daybreak; dan, female role in Chinese opera (traditionally played by specialized male actors)

Character meanings from CC-CEDICT (CC BY-SA 4.0).

Related words

一旦 is pronounced yídàn and means “once; in case”.

Say it out loud with Xiaolu →