KohnvskoiWhich spelling fits?

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

Which to use

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

#39,886
“Kohn” frequency rank
#26,483
“koi” frequency rank
66369
confusion score

Side-by-Side Comparison

Feature Kohn koi
Definition A Jewish surname from Hebrew. Ornamental domesticated varieties of the Amur carp (Cyprinus rubrofuscus), of Japan and eastern Asia with red-gold or white coloring.

Letter map: Kohn vs koi

Shared letters muted; letters that set Kohn and koi apart highlighted. Shared run: 2.

4 ch
Kohn
3 ch
koi

Grammar separator: Kohn vs koi

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Kohn is aname and koianoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 66369, derived from the frequency rank of both members and their visual similarity.

Kohn is recorded at frequency rank #39,886, classified as aname. koi is at rank #26,483, tagged as anoun, pronounced /kɔɪ/.

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 66369, this pair ranks #68,326 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Kohn vs koi

Shared letters: ko. Private to "Kohn": hn. Private to "koi": i.

"Kohn" · 4 letters · shape CVCC  ·  "koi" · 3 letters · shape CVV

Known mistypes of this pair

  • Kohnkhon · kkohn · kohhn · kohnn · konh · okhn

Frequently Asked Questions

Can "Kohn" and "koi" be used interchangeably?
No - they are not even the same part of speech. "Kohn" is a name and "koi" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "Kohn" or "koi" show up more?
"koi" is the more common of the two: it sits at frequency rank #26,483 in our English list, against #39,886 for "Kohn". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "Kohn" and "koi".

  • Full dictionary entry for "Kohn" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "koi" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #68,326 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Kohn" and "koi" also get mixed up with nearby pairs, the highest-scored neighbour is "Kohn 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 #68,326 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