Which to use
“rato” is an adjective and “rio” is a noun - they look or sound alike but fill different roles in a sentence.
- #5,246
- “rato” frequency rank
- #173
- “rio” frequency rank
- 5419
- confusion score
Side-by-Side Comparison
| Feature | rato | rio |
|---|---|---|
| Definition | ratificado; de verdade comprovada | curso por onde passa água doce continuamente (ou durante épocas específicas do ano) |
Where the spellings diverge
Shared letters are muted; the letters that actually set rato and rio apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
rato and rio form a confusable pair in the Portuguese index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 letter(s) in length - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 5419, derived from the frequency rank of both members and their visual similarity.
rato is recorded at frequency rank #5,246, classified as anadj, pronounced /ˈRa.tu/. 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 5419, this pair ranks #69,201 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Frequency comparison
Frequently Asked Questions
Can "rato" and "rio" be used interchangeably?
Remembering rato vs rio
The fastest way to pick the right one every time.
- Check the role first: if you need an adjective, it's “rato”; for a noun, it's “rio”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “rato” entry
- Browse more pairs most likely to be confused. Most confusable