Which to use
“koji” is a noun and “Koo” is a name - they look or sound alike but fill different roles in a sentence.
- #46,016
- “koji” frequency rank
- #30,114
- “Koo” frequency rank
- 76130
- confusion score
Side-by-Side Comparison
| Feature | koji | Koo |
|---|---|---|
| Definition | 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. | A surname from Cantonese. |
Letter map: koji vs Koo
Shared letters muted; letters that set koji and Koo apart highlighted. Shared run: 2. koji runs 4 letters (CVCV) against Koo's 3 (CVV) - the length gap alone is often enough to separate them once you know to check it.
Role in the sentence - koji and Koo
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: koji is anoun and Kooaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 76130, derived from the frequency rank of both members and their visual similarity.
koji is recorded at frequency rank #46,016, classified as anoun, pronounced /ˈkoʊd͡ʒi/. Koo is at rank #30,114, tagged as aname.
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 76130, this pair ranks #30,987 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of koji vs Koo
Shared letters: ko. Private to "koji": ij. Private to "Koo": -.
"koji" · 4 letters · shape CVCV · "Koo" · 3 letters · shape CVV
Known mistypes of this pair
- koji ← kjoi · kkoji · koij · kojji · okji
Frequently Asked Questions
Do "koji" and "Koo" mean the same thing in a sentence?
In ordinary English text, does "koji" or "Koo" show up more?
After this comparison
Done with this confusable. These links stay specific to "koji" and "Koo".
- Full dictionary entry for "koji" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Koo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #30,987 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "koji" and "Koo" 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 #30,987 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.