Which to use
“rou” is a noun and “roux” is an adjective - they look or sound alike but fill different roles in a sentence.
- #48,169
- “rou” frequency rank
- #5,076
- “roux” frequency rank
- 53245
- confusion score
Side-by-Side Comparison
| Feature | rou | roux |
|---|---|---|
| Definition | Synonyme de rohu (poisson). | D’une couleur proche de l’orange, souvent en parlant des cheveux. #AD4F09 |
Same sound, different letters: rou vs roux
Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 3 letters.
Same sound, different spelling - rou / roux
Say them out loud and nothing separates them: rou and roux carry the same recorded pronunciation, \ʁu\. Grammar is what tells them apart: one is anoun, the other anadjective, so most sentences will only accept one of them. They differ by 1 extra letter(s) - “rou” sits inside “roux”. Our composite confusion score for this pair is 53245, derived from the frequency rank of both members and their visual similarity.
rou is recorded at frequency rank #48,169, classified as anoun, pronounced \ʁu\. roux is at rank #5,076, tagged as anadj, pronounced \ʁu\.
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 53245, this pair ranks #142,085 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of rou vs roux
Shared letters: oru. Private to "rou": -. Private to "roux": x.
"rou" · 3 letters · shape CVV · "roux" · 4 letters · shape CVVC
Known mistypes of this pair
- roux ← orux · rouxx · roxu · rroux · ruox
Frequently Asked Questions
Can "rou" and "roux" be used interchangeably?
Frequency check: "rou" vs "roux" - which ranks higher?
What to do next
"rou" and "roux" share a sound, keep the gloss open, then jump to the headword or a nearby trap.
- Full dictionary entry for "rou" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "roux" - compare definitions side by side with the headword page. Word entry
- This pair ranks #142,085 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "rou" and "roux" also get mixed up with nearby pairs, the highest-scored neighbour is "rou vs roya". 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 #142,085 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.