sousvssurWhat's the difference?

Which to use

“sous” and “sur” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#115
“sous” frequency rank
#26
“sur” frequency rank
141
confusion score

Side-by-Side Comparison

Feature sous sur
Definition Sert à marquer la situation d’une chose à l’égard d’une autre qui est au-dessus, par-dessus, qui la couvre en totalité ou en partie. Indique une position plus élevée.

Where the eye mixes sous and sur

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
sous
3 ch
sur

Visual trap between sous and sur

A purely visual mix-up. sous (\su\) and sur (\syʁ\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 141, derived from the frequency rank of both members and their visual similarity.

sous is recorded at frequency rank #115, classified as aprep, pronounced \su\. sur is at rank #26, tagged as aprep, pronounced \syʁ\.

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 141, this pair ranks #440,059 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sous vs sur

Shared letters: su. Private to "sous": o. Private to "sur": r.

"sous" · 4 letters · shape CVVC  ·  "sur" · 3 letters · shape CVC

Known mistypes of this pair

  • sousosus · sosu · souss · ssous · suos

Frequently Asked Questions

Is swapping "sous" for "sur" ever safe?
No. They are said differently (\su\ versus \syʁ\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "sous" vs "sur" - which ranks higher?
"sur" is the more common of the two: it sits at frequency rank #26 in our French list, against #115 for "sous". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "sous" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sur" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #440,059 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "sous" and "sur" also get mixed up with nearby pairs, the highest-scored neighbour is "sous 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 #440,059 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