Which to use
“rough” is an adjective and “ruff” is a noun - they look or sound alike but fill different roles in a sentence.
- #3,083
- “rough” frequency rank
- #27,272
- “ruff” frequency rank
- 30355
- confusion score
Side-by-Side Comparison
| Feature | rough | ruff |
|---|---|---|
| Definition | Not smooth; uneven. | A circular frill or ruffle on a garment, especially a starched, fluted frill at the neck in Elizabethan and Jacobean England (1560s–1620s). |
Same sound, different letters: rough vs ruff
Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 2 letters.
Homophone desk: rough vs ruff
Say them out loud and nothing separates them: rough and ruff carry the same recorded pronunciation, /ɹʌf/. Grammar is what tells them apart: one is anadjective, the other anoun, so most sentences will only accept one of them. They differ by 1 letter(s) in length. Our composite confusion score for this pair is 30355, derived from the frequency rank of both members and their visual similarity.
rough is recorded at frequency rank #3,083, classified as anadj, pronounced /ɹʌf/. ruff is at rank #27,272, tagged as anoun, pronounced /ɹʌf/.
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 30355, this pair ranks #355,222 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of rough vs ruff
Shared letters: ru. Private to "rough": gho. Private to "ruff": f.
"rough" · 5 letters · shape CVVCC · "ruff" · 4 letters · shape CVCC
Known mistypes of this pair
Frequently Asked Questions
Do "rough" and "ruff" mean the same thing in a sentence?
Frequency check: "rough" vs "ruff" - which ranks higher?
After this comparison
You've separated the homophone pair "rough" / "ruff". Follow the links when you need the full entry or a neighbour that trips the same ear.
- Full dictionary entry for "rough" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ruff" - compare definitions side by side with the headword page. Word entry
- This pair ranks #355,222 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "rough" and "ruff" also get mixed up with nearby pairs, the highest-scored neighbour is "Rua vs ruff". 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 #355,222 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.