yivsyonWhich spelling fits?

Quick tell: yi is a noun, yon is an adjective, so they fill different roles in a sentence.

Which to use

“yi” is a noun and “yon” is an adjective - they look or sound alike but fill different roles in a sentence.

#19,716
“yi” frequency rank
#22,739
“yon” frequency rank
42455
confusion score

Side-by-Side Comparison

Feature yi yon
Definition Langue parlée au Sichuan en Chine par les Yis. Ce … là-bas, cette … là-bas.

Where the eye mixes yi and yon

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

2 ch
yi
3 ch
yon

Look-alike desk: yi vs yon

These two trip readers on the page rather than in the ear: yi is \ji\ while yon is \ˈjɑn\. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 42455, derived from the frequency rank of both members and their visual similarity.

yi is recorded at frequency rank #19,716, classified as anoun, pronounced \ji\. yon is at rank #22,739, tagged as anadj, pronounced \ˈjɑn\.

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 42455, this pair ranks #225,481 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of yi vs yon

Shared letters: y. Private to "yi": i. Private to "yon": no.

"yi" · 2 letters · shape VV  ·  "yon" · 3 letters · shape VVC

Frequently Asked Questions

Can "yi" and "yon" be used interchangeably?
No - they are not even the same part of speech. "yi" is a noun and "yon" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "yi" or "yon" show up more?
"yi" is the more common of the two: it sits at frequency rank #19,716 in our French list, against #22,739 for "yon". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "yi" and "yon" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "yi" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "yon" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #225,481 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "yi" and "yon" also get mixed up with nearby pairs, the highest-scored neighbour is "yon vs yum". Nearby pair

Confusion rank #225,481 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list