Which to use
“roulage” is a noun and “roulais” is a verb - they look or sound alike but fill different roles in a sentence.
- #35,700
- “roulage” frequency rank
- #45,290
- “roulais” frequency rank
- 80990
- confusion score
Side-by-Side Comparison
| Feature | roulage | roulais |
|---|---|---|
| Definition | Transport des marchandises par voiture. | Première personne du singulier de l’imparfait de l’indicatif de rouler. |
Where the eye mixes roulage and roulais
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. roulage (CVVCVCV) and roulais (CVVCVVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Visual trap between roulage and roulais
These two trip readers on the page rather than in the ear: roulage is \ʁu.laʒ\ while roulais is \ʁu.lɛ\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 80990, derived from the frequency rank of both members and their visual similarity.
roulage is recorded at frequency rank #35,700, classified as anoun, pronounced \ʁu.laʒ\. roulais is at rank #45,290, tagged as averb, pronounced \ʁu.lɛ\.
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 80990, this pair ranks #19,698 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of roulage vs roulais
Shared letters: aloru. Private to "roulage": eg. Private to "roulais": is.
"roulage" · 7 letters · shape CVVCVCV · "roulais" · 7 letters · shape CVVCVVC
Known mistypes of this pair
Frequently Asked Questions
Do "roulage" and "roulais" mean the same thing in a sentence?
In ordinary French text, does "roulage" or "roulais" show up more?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "roulage" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "roulais" - compare definitions side by side with the headword page. Word entry
- This pair ranks #19,698 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "roulage" and "roulais" also get mixed up with nearby pairs, the highest-scored neighbour is "roulais vs roulis". 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 #19,698 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.