一旦 [ㄧ ㄉㄢˋ; yi1 dan4]
in case (sth happens)
if
once (sth happens, then...)
when
in a short time
in one day
◄ ►
一旦
いったん
adverb (fukushi)
word usually written using kana alone
once
for a moment
temporarily
noun (common) (futsuumeishi)
archaism
one morning
◄ ►