Which to use
“rob” and “roc” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #9,552
- “rob” frequency rank
- #10,935
- “roc” frequency rank
- 20487
- confusion score
Side-by-Side Comparison
| Feature | rob | roc |
|---|---|---|
| Definition | Suc épaissi et dépuré de plantes, de fruits cuits. | Masse de pierre très dure, qui tient au sol. |
Where the eye mixes rob and roc
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses rob with roc
A purely visual mix-up. rob (\ʁɔb\) and roc (\ʁɔk\) 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 a single letter - b in “rob” becomes c in “roc”. Our composite confusion score for this pair is 20487, 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\. roc is at rank #10,935, tagged as anoun, pronounced \ʁɔk\.
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 20487, this pair ranks #368,041 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of rob vs roc
Shared letters: or. Private to "rob": b. Private to "roc": c.
"rob" · 3 letters · shape CVC · "roc" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "rob" for "roc" ever safe?
Frequency check: "rob" vs "roc" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "rob" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "roc" - compare definitions side by side with the headword page. Word entry
- This pair ranks #368,041 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "rob" and "roc" also get mixed up with nearby pairs, the highest-scored neighbour is "roc vs roya". Nearby pair
Confusion rank #368,041 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.