Which to use
“roca” is a noun and “roer” is a verb - they look or sound alike but fill different roles in a sentence.
- #20,120
- “roca” frequency rank
- #25,138
- “roer” frequency rank
- 45258
- confusion score
Side-by-Side Comparison
| Feature | roca | roer |
|---|---|---|
| Definition | cana ou vara preparada para fiar | triturar com os dentes; destruir |
Where the eye mixes roca and roer
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses roca with roer
These two trip readers on the page rather than in the ear: roca is /ˈRɔ.kɐ/ while roer is /ˈRweɾ/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 45258, derived from the frequency rank of both members and their visual similarity.
roca is recorded at frequency rank #20,120, classified as anoun, pronounced /ˈRɔ.kɐ/. roer is at rank #25,138, tagged as averb, pronounced /ˈRweɾ/.
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 45258, this pair ranks #20,141 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of roca vs roer
Shared letters: or. Private to "roca": ac. Private to "roer": e.
"roca" · 4 letters · shape CVCV · "roer" · 4 letters · shape CVVC
Known mistypes of this pair
Frequently Asked Questions
Can "roca" and "roer" be used interchangeably?
In ordinary Portuguese text, does "roca" or "roer" show up more?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "roca" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "roer" - compare definitions side by side with the headword page. Word entry
- This pair ranks #20,141 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "roca" and "roer" also get mixed up with nearby pairs, the highest-scored neighbour is "robe vs roer". 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 #20,141 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.