KenjivskojiTell them apart

Quick tell: Kenji is a name, koji is a noun, so they fill different roles in a sentence.

Which to use

“Kenji” is a name and “koji” is a noun - they look or sound alike but fill different roles in a sentence.

#36,212
“Kenji” frequency rank
#46,016
“koji” frequency rank
82228
confusion score

Side-by-Side Comparison

Feature Kenji koji
Definition A male given name from Japanese. 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.

Letter map: Kenji vs koji

Shared letters muted; letters that set Kenji and koji apart highlighted. Shared run: 3. Kenji runs 5 letters (CVCCV) against koji's 4 (CVCV) - the length gap alone is often enough to separate them once you know to check it.

5 ch
Kenji
4 ch
koji

Part-of-speech tell for Kenji / koji

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Kenji is aname and kojianoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 82228, derived from the frequency rank of both members and their visual similarity.

Kenji is recorded at frequency rank #36,212, classified as aname. koji is at rank #46,016, tagged as anoun, pronounced /ˈkoʊd͡ʒi/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 82228, this pair ranks #16,133 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Kenji vs koji

Shared letters: ijk. Private to "Kenji": en. Private to "koji": o.

"Kenji" · 5 letters · shape CVCCV  ·  "koji" · 4 letters · shape CVCV

Known mistypes of this pair

  • Kenji ← eknji · kejni · kenij · kenjji · kennji · kkenji · kneji
  • koji ← kjoi · kkoji · koij · kojji · okji

Frequently Asked Questions

Can "Kenji" and "koji" be used interchangeably?
No - they are not even the same part of speech. "Kenji" is a name and "koji" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Kenji" or "koji"?
"Kenji" is the more common of the two: it sits at frequency rank #36,212 in our English list, against #46,016 for "koji". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "Kenji" and "koji". Here's where to go from here.

  • Full dictionary entry for "Kenji" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "koji" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #16,133 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Kenji" and "koji" also get mixed up with nearby pairs, the highest-scored neighbour is "koji vs Kop". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #16,133 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list