VocabularyJLPT N5 · core

一回

いっかい

hepburn ikkai

once, one time

Part of speech · noun

Pattern visualization

一one

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Examples

一回だけです。
Just once.
一回試してください。
Please try once.

Collocations

一回 (ikkai, once)一回だけ一回試す一回戦 (first round)もう一回 (one more time)

Mnemonic

Ikkai (一回) is "once / one time" — B + no-cluster occurrence count of 1. 一 + 回 → ichi + gemination + kai (1+kai sound mutation). Pairs with ichido: ikkai conversational; ichido formal / emphatic. Mou ikkai (one more time) is very frequent. Korean hanbeon / 1hwoe and Chinese yici / yihui parallel; Japans ikkai / ichido split.

Quick check

Ikkai vs ichido?