Which to use
“rio” and “risco” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #173
- “rio” frequency rank
- #1,084
- “risco” frequency rank
- 1257
- confusion score
Side-by-Side Comparison
| Feature | rio | risco |
|---|---|---|
| Definition | curso por onde passa água doce continuamente (ou durante épocas específicas do ano) | delineamento; modelo; plano; planta; sulco; traçado; traço |
Where the eye mixes rio and risco
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between rio and risco
A purely visual mix-up. rio (/ʁi.u/ [ʁiu̯]) and risco (/ˈRiʃ.ku/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 letter(s) in length. Our composite confusion score for this pair is 1257, derived from the frequency rank of both members and their visual similarity.
rio is recorded at frequency rank #173, classified as anoun, pronounced /ʁi.u/ [ʁiu̯]. risco is at rank #1,084, tagged as anoun, pronounced /ˈRiʃ.ku/.
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 1257, this pair ranks #74,333 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of rio vs risco
Shared letters: ior. Private to "rio": -. Private to "risco": cs.
"rio" · 3 letters · shape CVV · "risco" · 5 letters · shape CVCCV
Known mistypes of this pair
- risco ← irsco · ricso · riscco · risoc · rissco · rrisco · rsico
Frequently Asked Questions
Is swapping "rio" for "risco" ever safe?
Which is more common, "rio" or "risco"?
Useful next steps
Eye-level mix-up between "rio" and "risco" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "rio" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "risco" - compare definitions side by side with the headword page. Word entry
- This pair ranks #74,333 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "rio" and "risco" also get mixed up with nearby pairs, the highest-scored neighbour is "ratio vs rio". 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 #74,333 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.