Which to use
“rouages” and “roulage” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #21,154
- “rouages” frequency rank
- #35,700
- “roulage” frequency rank
- 56854
- confusion score
Side-by-Side Comparison
| Feature | rouages | roulage |
|---|---|---|
| Definition | Pluriel de rouage. | Transport des marchandises par voiture. |
Where the eye mixes rouages and roulage
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. rouages (CVVVCVC) and roulage (CVVCVCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Look-alike desk: rouages vs roulage
A purely visual mix-up. rouages (\ʁwaʒ\) and roulage (\ʁu.laʒ\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 4 positions. Our composite confusion score for this pair is 56854, derived from the frequency rank of both members and their visual similarity.
rouages is recorded at frequency rank #21,154, classified as anoun, pronounced \ʁwaʒ\. roulage is at rank #35,700, tagged as anoun, pronounced \ʁu.laʒ\.
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 56854, this pair ranks #118,503 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of rouages vs roulage
Shared letters: aegoru. Private to "rouages": s. Private to "roulage": l.
"rouages" · 7 letters · shape CVVVCVC · "roulage" · 7 letters · shape CVVCVCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "rouages" for "roulage" ever safe?
Which is more common, "rouages" or "roulage"?
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 "rouages" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "roulage" - compare definitions side by side with the headword page. Word entry
- This pair ranks #118,503 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "rouages" and "roulage" also get mixed up with nearby pairs, the highest-scored neighbour is "rodage vs roulage". 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 #118,503 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.