Which to use
“rob” is a noun and “roux” is an adjective - they look or sound alike but fill different roles in a sentence.
- #9,552
- “rob” frequency rank
- #5,076
- “roux” frequency rank
- 14628
- confusion score
Side-by-Side Comparison
| Feature | rob | roux |
|---|---|---|
| Definition | Suc épaissi et dépuré de plantes, de fruits cuits. | D’une couleur proche de l’orange, souvent en parlant des cheveux. #AD4F09 |
Where the eye mixes rob and roux
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: rob vs roux
These two trip readers on the page rather than in the ear: rob is \ʁɔb\ while roux is \ʁu\. 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 14628, derived from the frequency rank of both members and their visual similarity.
rob is recorded at frequency rank #9,552, classified as anoun, pronounced \ʁɔb\. 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 14628, this pair ranks #395,857 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of rob vs roux
Shared letters: or. Private to "rob": b. Private to "roux": ux.
"rob" · 3 letters · shape CVC · "roux" · 4 letters · shape CVVC
Known mistypes of this pair
- roux ← orux · rouxx · roxu · rroux · ruox
Frequently Asked Questions
Can "rob" and "roux" be used interchangeably?
Which is more common, "rob" or "roux"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "rob" 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 #395,857 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "rob" and "roux" also get mixed up with nearby pairs, the highest-scored neighbour is "rob 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 #395,857 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.