# koji

> English word · Noun · IPA /ˈkoʊd͡ʒi/ · frequency rank #46,016

## Definitions
1. A substance that is produced by letting a mold, especially Aspergillus oryzae, grow on rice, barley, soybeans, etc., used to make fermented products such as sake, amazake, miso, and soy sauce.
2. The mold used in such a preparation.

## Etymology
Borrowed from Japanese 麹 (kōji).

## Easily confused with
- **Kos** (https://plainspell.com/en/vs/koji-vs-kos)
- **Koo** (https://plainspell.com/en/vs/koji-vs-koo)
- **Kok** (https://plainspell.com/en/vs/koji-vs-kok)
- **kor** (https://plainspell.com/en/vs/koji-vs-kor)
- **Kyi** (https://plainspell.com/en/vs/koji-vs-kyi)
- **Kop** (https://plainspell.com/en/vs/koji-vs-kop)
- **Kong** (https://plainspell.com/en/vs/koji-vs-kong)
- **kool** (https://plainspell.com/en/vs/koji-vs-kool)
- **KORS** (https://plainspell.com/en/vs/koji-vs-kors)
- **Kona** (https://plainspell.com/en/vs/koji-vs-kona)
- **koko** (https://plainspell.com/en/vs/koji-vs-koko)
- **Kota** (https://plainspell.com/en/vs/koji-vs-kota)
- **kook** (https://plainspell.com/en/vs/koji-vs-kook)
- **kono** (https://plainspell.com/en/vs/koji-vs-kono)
- **Kojima** (https://plainspell.com/en/vs/koji-vs-kojima)
- **kI** (https://plainspell.com/en/vs/ki-vs-koji)
- **ko** (https://plainspell.com/en/vs/ko-vs-koji)
- **KJ** (https://plainspell.com/en/vs/kj-vs-koji)
- **kai** (https://plainspell.com/en/vs/kai-vs-koji)
- **Koh** (https://plainspell.com/en/vs/koh-vs-koji)

## Common misspellings (5)
`kjoi`, `kkoji`, `koij`, `kojji`, `okji`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/koji