JMdict: 1525770

万が一 【まんがいち】

  1. [adv] (if) by some chance; by some possibility; in the unlikely event that; 10000 to 1
  2. [n] (unlikely event of) emergency; the worst(-case scenario)
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
Ten Thousand, 10,000 マン, バン よろず
One, One Radical (no.1) イチ, イツ ひと-, ひと.つ

Words often seen with this one: (experimental feature)

こと (34),  (25), にも (23), もし (22),  (19), この (19),  (18), 場合 (15), 何か (14), その (14), としても (14), いう (13), ために (12), いい (11), どう (11),  (10), ため (10)