expression
in an emergency; for unexpected circumstances
Used when talking about preparations or actions for a possible crisis or unforeseen event. Often appears in phrases like もしもの時に備える (prepare for an emergency).
See also: もしもの事 (もしものこと)
もしもの時に備えて、非常食を用意しておこう。
Let's stock up on emergency food in case of an emergency.
もしもの時は、この番号に電話してください。
In an emergency, please call this number.