This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

万が一

Readings

Kana: まんがいち、まんがいつ
Romaji: mangaichi, mangaitsu
Kana
Romaji

Definition

exp
adv
1

if by any chance; just in case; in the worst case; in the unlikely event that; 10000 to 1

Kanji

Readings: マン、 バン、 よろず
Meanings: ten thousand, 10,000
Readings: イチ、 イツ、 ひと-、 ひと.つ
Meanings: one, one radical (no.1)

Example Sentences

(まん)(いち)()()わったら、()らせて(くだ)さい。
➥If you change your mind, let me know.
Full Entry➤
(まん)(いち)(そな)えて、武器(ぶき)になるものを(さが)した。
➥I looked around for a weapon just in case.
Full Entry➤
もし(まん)(いち)(わたし)失敗(しっぱい)したら両親(りょうしん)(なに)()うだろう。
➥If I should fail, what would my parents say.
Full Entry➤
(まん)(いち)場合(ばあい)(そな)えて貯金(ちょきん)するのは賢明(けんめい)だ。
➥It is wise to save money for a rainy day.
Full Entry➤
(まん)(いち)(かれ)がこちらへ()たらすぐに()らせます。
➥If he should come here, I will let you know at once.
Full Entry➤
(まん)(いち)(とき)のために、保険(ほけん)には(はい)っておいたほうがいいよ。
➥Insurance is a good idea - just in case.
Full Entry➤
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