Which to use
“roach” and “roc” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #16,332
- “roach” frequency rank
- #19,439
- “roc” frequency rank
- 35771
- confusion score
Side-by-Side Comparison
| Feature | roach | roc |
|---|---|---|
| Definition | Certain members of the fish family Cyprinidae, including: | An enormous mythical bird in Eastern legend. |
Where the eye mixes roach and roc
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between roach and roc
A purely visual mix-up. roach (/ɹəʊtʃ/) and roc (/ɹɒk/) 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 2 letter(s) in length. Our composite confusion score for this pair is 35771, derived from the frequency rank of both members and their visual similarity.
roach is recorded at frequency rank #16,332, classified as anoun, pronounced /ɹəʊtʃ/. roc is at rank #19,439, tagged as anoun, pronounced /ɹɒk/.
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 35771, this pair ranks #309,070 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of roach vs roc
Shared letters: cor. Private to "roach": ah. Private to "roc": -.
"roach" · 5 letters · shape CVVCC · "roc" · 3 letters · shape CVC
Known mistypes of this pair
- roach ← orach · raoch · roacch · roachh · roahc · rocah · rroach
Frequently Asked Questions
Is swapping "roach" for "roc" ever safe?
Frequency check: "roach" vs "roc" - which ranks higher?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "roach" 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 #309,070 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "roach" and "roc" also get mixed up with nearby pairs, the highest-scored neighbour is "roc vs Rua". 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 #309,070 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.