Which to use
“rétro” is an adjective and “Rotrou” is a name - they look or sound alike but fill different roles in a sentence.
- #12,249
- “rétro” frequency rank
- #47,580
- “Rotrou” frequency rank
- 59829
- confusion score
Side-by-Side Comparison
| Feature | rétro | Rotrou |
|---|---|---|
| Definition | Qui appartient au passé. | Nom de famille français. |
Where the eye mixes rétro and Rotrou
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. rétro runs 5 letters (CVCCV) against Rotrou's 6 (CVCCVV) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: rétro vs Rotrou
These two trip readers on the page rather than in the ear: rétro is \ʁe.tʁo\ while Rotrou is \ʁo.tʁu\. 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 (adjective vs name), which is usually the fastest check. Our composite confusion score for this pair is 59829, derived from the frequency rank of both members and their visual similarity.
rétro is recorded at frequency rank #12,249, classified as anadj, pronounced \ʁe.tʁo\. Rotrou is at rank #47,580, tagged as aname, pronounced \ʁo.tʁu\.
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 59829, this pair ranks #100,968 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of rétro vs Rotrou
Shared letters: ort. Private to "rétro": é. Private to "Rotrou": u.
"rétro" · 5 letters · shape CVCCV · "Rotrou" · 6 letters · shape CVCCVV
Known mistypes of this pair
- Rotrou ← ortrou · rortou · rotoru · rotrrou · rotruo · rottrou · rrotrou · rtorou
Frequently Asked Questions
Is swapping "rétro" for "Rotrou" ever safe?
Frequency check: "rétro" vs "Rotrou" - which ranks higher?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "rétro" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Rotrou" - compare definitions side by side with the headword page. Word entry
- This pair ranks #100,968 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "rétro" and "Rotrou" also get mixed up with nearby pairs, the highest-scored neighbour is "rotor vs Rotrou". 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 #100,968 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.