万一

nounまんいち · manichi

1. English(unlikely event of) emergency; the worst(-case scenario); 10000 to 1

   • 万一の場合に備えて貯金するのは賢明だ。It is wise to save money for a rainy day.

2. English(if) by some chance; by some possibility; in the unlikely event that

   • 万一彼がこちらへきたらすぐ知らせます。If by any chance he comes here, I'll let you know at once.

Source: JMdict (EDRDG) · CC BY-SA 4.0 (EDRDG)