Word.ws English Dictionary

koji

US/ˈkoʊd͡ʒi/

koji noun: 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.

Noun

koji (usually uncountable, plural kojis)

  1. (usually) 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. (usually) The mold used in such a preparation.

Proper noun capitalized: Koji

Koji

  1. A male given name from Japanese.

Forms of koji

pluralkojis

Origin of koji

Borrowed from Japanese 麹 (kōji).

Borrowed from Japanese こうじ (Kōji).

Questions about koji

What does koji mean?
Koji means 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.
What part of speech is koji?
Koji can be a noun or a proper noun.
How do you pronounce koji?
Koji is pronounced /ˈkoʊd͡ʒi/ (US).
What is the plural of koji?
The plural of koji is kojis.

Words near koji in the dictionary

  1. kojang
  2. kojangs
  3. kojate
  4. kojates
  5. KOJC
  6. koji
  7. kojibiose
  8. kojic
  9. kojic acid
  10. Kojima
  11. Kojimas

Source and license

Adapted from Wiktionary: koji (page history and authors); Koji (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “koji.” Word.ws, https://word.ws/koji. Based on Wiktionary, CC BY-SA 4.0.