sourvssouriWhich spelling fits?

Quick tell: sour is a noun, souri is a verb, so they fill different roles in a sentence.

Which to use

“sour” is a noun and “souri” is a verb - they look or sound alike but fill different roles in a sentence.

#35,736
“sour” frequency rank
#19,687
“souri” frequency rank
55423
confusion score

Side-by-Side Comparison

Feature sour souri
Definition Égout. Participe passé masculin singulier de sourire.

Where the eye mixes sour and souri

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. sour runs 4 letters (CVVC) against souri's 5 (CVVCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
sour
5 ch
souri

Why the eye confuses sour with souri

These two trip readers on the page rather than in the ear: sour is \suʁ\ while souri is \su.ʁi\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “sour” sits inside “souri”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 55423, derived from the frequency rank of both members and their visual similarity.

sour is recorded at frequency rank #35,736, classified as anoun, pronounced \suʁ\. souri is at rank #19,687, tagged as averb, pronounced \su.ʁi\.

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 55423, this pair ranks #127,537 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sour vs souri

Shared letters: orsu. Private to "sour": -. Private to "souri": i.

"sour" · 4 letters · shape CVVC  ·  "souri" · 5 letters · shape CVVCV

Known mistypes of this pair

  • sour ← osur · soru · sourr · ssour · suor
  • souri ← osuri · sorui · souir · sourri · ssouri · suori

Frequently Asked Questions

Can "sour" and "souri" be used interchangeably?
No - they are not even the same part of speech. "sour" is a noun and "souri" a verb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "sour" vs "souri" - which ranks higher?
"souri" is the more common of the two: it sits at frequency rank #19,687 in our French list, against #35,736 for "sour". 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 "sour" and "souri" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "sour" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "souri" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #127,537 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "sour" and "souri" also get mixed up with nearby pairs, the highest-scored neighbour is "sour vs suu". 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 #127,537 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