Jisho

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Noun
1. emergency; unlikely eventlit. 1 in 10,000
Adverb
2. by some chance; by some possibility
Other forms
万一 【ばんいち】万一 【まんいつ】万一 【ばんいつ】
Notes
ばんいち: Out-dated or obsolete kana usage. まんいつ: Out-dated or obsolete kana usage. ばんいつ: Out-dated or obsolete kana usage.

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