Which to use
“caso” is a conjunction and “custo” is a noun - they look or sound alike but fill different roles in a sentence.
- #181
- “caso” frequency rank
- #1,773
- “custo” frequency rank
- 1954
- confusion score
Side-by-Side Comparison
| Feature | caso | custo |
|---|---|---|
| Definition | na hipótese de; se | o quanto algo custa, o preço de algo |
Where the eye mixes caso and custo
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between caso and custo
These two trip readers on the page rather than in the ear: caso is /ˈka.zu/ while custo is /ˈkuʃ.tu/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (conjunction vs noun), which is usually the fastest check. Our composite confusion score for this pair is 1954, derived from the frequency rank of both members and their visual similarity.
caso is recorded at frequency rank #181, classified as aconj, pronounced /ˈka.zu/. custo is at rank #1,773, tagged as anoun, pronounced /ˈkuʃ.tu/.
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 1954, this pair ranks #73,568 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of caso vs custo
Shared letters: cos. Private to "caso": a. Private to "custo": tu.
"caso" · 4 letters · shape CVCV · "custo" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Do "caso" and "custo" mean the same thing in a sentence?
Which is more common, "caso" or "custo"?
After this comparison
Eye-level mix-up between "caso" and "custo" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "caso" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "custo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #73,568 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "caso" and "custo" also get mixed up with nearby pairs, the highest-scored neighbour is "caso vs ciao". 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 #73,568 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.