Senses
万一/ 萬一 just in case
Used to express a low-probability event or hypothesis, usually for something undesirable; in the unlikely event that; if by any chance.
万一/ 萬一 contingency
A possible but unlikely event or accident; an eventuality.
万一/ 萬一 one ten-thousandth
(bound form) A very small percentage; literally one part in ten thousand.
References
No references for this word.