KochvskoiWhat's the difference?

Quick tell: Koch is a name, koi is an adjective, so they fill different roles in a sentence.

Which to use

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

#26,777
“Koch” frequency rank
#29,838
“koi” frequency rank
56615
confusion score

Side-by-Side Comparison

Feature Koch koi
Definition Nom de famille. Autre orthographe de koï (race de carpe du Japon, aussi appelée carpe japonaise).

Where the spellings diverge

Shared letters are muted; the letters that actually set Koch and koi apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

4 ch
Koch
3 ch
koi

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: Koch is \kɔk\ while koi is \kɔj\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (name vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 56615, derived from the frequency rank of both members and their visual similarity.

Koch is recorded at frequency rank #26,777, classified as aname, pronounced \kɔk\. koi is at rank #29,838, tagged as anadj, pronounced \kɔj\.

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 56615, this pair ranks #119,979 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Koch vs koi

Shared letters: ko. Private to "Koch": ch. Private to "koi": i.

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

Known mistypes of this pair

  • Kochkcoh · kkoch · kocch · kochh · kohc · okch

Frequency comparison

Koch#26,777
koi#29,838

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "Koch" and "koi" be used interchangeably?
No - they are not even the same part of speech. "Koch" is a name and "koi" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Koch" or "koi"?
"Koch" is the more common of the two: it sits at frequency rank #26,777 in our French list, against #29,838 for "koi". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering Koch vs koi

The fastest way to pick the right one every time.

  • Check the role first: if you need a name, it's “Koch”; for an adjective, it's “koi”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “Koch” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list