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synonym Comparative
たちまち
VS
いっぺん

Differences Between "たちまち" and "いっぺん"

Option A
たちまち
Meaning
instantly; in a moment; at once; suddenly
Reading
たちまち (tachimachi)
Syllabus Level
N2
Practical Example
雨が降り出すと、たちまち道路は水浸しになった。
As soon as it started raining, the road instantly became flooded.
Option B
いっぺん
Meaning
once, one time; a single occasion
Reading
いっぺん (ippen)
Syllabus Level
N2
Practical Example
このレストラン、いっぺん行ってみたいね。
I'd like to try going to this restaurant once.

Which one to use?

Select the correct Japanese word for this context

Which word fits this context: "(instantly; in a moment; at once; suddenly)"?
🎉 正解 / Correct!
使い分け解説:
- たちまち: Expresses that something happened very quickly, almost immediately. Often used for sudden changes or rapid progression.
- いっぺん: Similar to 「一度 (ichido)」, meaning 'one time' or 'once'. Can imply trying something quickly or experiencing something just one time. Often used colloquially.
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