万一

Meaning

1. n
   (unlikely event of) emergency; the worst(-case scenario); 10000 to 1
2. advadj-no
   (if) by some chance; by some possibility; in the unlikely event that

Example sentences

• 国土安全保障省の主要業務は、米国内のテロ攻撃を未然に防ぎ、万一、発生した場合は、被害を最小限に食い止め、速やかな復旧を実施することにある。

  The Department of Homeland Security's primary function is the prevention of terrorist attacks occurring within America and, in the extreme case of an attack happening, holding losses to the smallest possible level and swiftly carrying out restoration.

• 万一明日雨が降れば家にいます。

  If it happens to rain tomorrow I'll stay at home.

• 万一列車に乗り遅れたら、バスでいきます。

  If we should miss the train, we'll go by bus.