Which to use
“rog” and “ru” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #49,334
- “rog” frequency rank
- #16,467
- “ru” frequency rank
- 65801
- confusion score
Side-by-Side Comparison
| Feature | rog | ru |
|---|---|---|
| Definition | « ? » ou point d’interrogation | Petit ruisseau. |
Where the eye mixes rog and ru
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses rog with ru
A purely visual mix-up. rog (\ʁɔɡ\) and ru (\ʁy\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 65801, derived from the frequency rank of both members and their visual similarity.
rog is recorded at frequency rank #49,334, classified as anoun, pronounced \ʁɔɡ\. ru is at rank #16,467, tagged as anoun, pronounced \ʁy\.
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 65801, this pair ranks #70,709 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of rog vs ru
Shared letters: r. Private to "rog": go. Private to "ru": u.
"rog" · 3 letters · shape CVC · "ru" · 2 letters · shape CV
Frequently Asked Questions
Is swapping "rog" for "ru" ever safe?
Which is more common, "rog" or "ru"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "rog" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ru" - compare definitions side by side with the headword page. Word entry
- This pair ranks #70,709 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "rog" and "ru" also get mixed up with nearby pairs, the highest-scored neighbour is "rog vs roya". Nearby pair
Confusion rank #70,709 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.