Which to use
“castro” is a verb and “casulo” is a noun - they look or sound alike but fill different roles in a sentence.
- #2,264
- “castro” frequency rank
- #32,503
- “casulo” frequency rank
- 34767
- confusion score
Side-by-Side Comparison
| Feature | castro | casulo |
|---|---|---|
| Definition | cortar | vagem que envolve as sementes, nas favas e outras leguminosas |
Where the eye mixes castro and casulo
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Visual trap between castro and casulo
These two trip readers on the page rather than in the ear: castro is /ˈkas.troː/ while casulo is /kɐ.ˈzu.lu/. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 34767, derived from the frequency rank of both members and their visual similarity.
castro is recorded at frequency rank #2,264, classified as averb, pronounced /ˈkas.troː/. casulo is at rank #32,503, tagged as anoun, pronounced /kɐ.ˈzu.lu/.
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 34767, this pair ranks #32,411 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of castro vs casulo
Shared letters: acos. Private to "castro": rt. Private to "casulo": lu.
"castro" · 6 letters · shape CVCCCV · "casulo" · 6 letters · shape CVCVCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "castro" for "casulo" ever safe?
In ordinary Portuguese text, does "castro" or "casulo" show up more?
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 "castro" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "casulo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #32,411 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "castro" and "casulo" also get mixed up with nearby pairs, the highest-scored neighbour is "casulo vs coágulo". 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 #32,411 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.