Which to use
“ralo” is an adjective and “rio” is a noun - they look or sound alike but fill different roles in a sentence.
- #20,418
- “ralo” frequency rank
- #173
- “rio” frequency rank
- 20591
- confusion score
Side-by-Side Comparison
| Feature | ralo | rio |
|---|---|---|
| Definition | pouco espesso, pouco denso | curso por onde passa água doce continuamente (ou durante épocas específicas do ano) |
Where the eye mixes ralo and rio
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses ralo with rio
These two trip readers on the page rather than in the ear: ralo is /ˈRa.lu/ while rio is /ʁi.u/ [ʁiu̯]. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 20591, derived from the frequency rank of both members and their visual similarity.
ralo is recorded at frequency rank #20,418, classified as anadj, pronounced /ˈRa.lu/. rio is at rank #173, tagged as anoun, pronounced /ʁi.u/ [ʁiu̯].
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 20591, this pair ranks #49,882 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ralo vs rio
Shared letters: or. Private to "ralo": al. Private to "rio": i.
"ralo" · 4 letters · shape CVCV · "rio" · 3 letters · shape CVV
Known mistypes of this pair
- ralo ← arlo · rallo · raol · rlao · rralo
Frequently Asked Questions
Can "ralo" and "rio" be used interchangeably?
Which is more common, "ralo" or "rio"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "ralo" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "rio" - compare definitions side by side with the headword page. Word entry
- This pair ranks #49,882 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "ralo" and "rio" also get mixed up with nearby pairs, the highest-scored neighbour is "rabi vs ralo". 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 #49,882 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.