Which to use
“río” is a noun and “roo” is a verb - they look or sound alike but fill different roles in a sentence.
- #698
- “río” frequency rank
- #13,787
- “roo” frequency rank
- 14485
- confusion score
Side-by-Side Comparison
| Feature | río | roo |
|---|---|---|
| Definition | Corriente de agua de caudal importante que discurre por tierra desde un manantial, una masa de hielos o un lago. | Primera persona del singular (yo) del presente de indicativo de roer. |
Where the eye mixes río and roo
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses río with roo
These two trip readers on the page rather than in the ear: río is [ˈrio] while roo is [ˈroo]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - í in “río” becomes o in “roo”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 14485, derived from the frequency rank of both members and their visual similarity.
río is recorded at frequency rank #698, classified as anoun, pronounced [ˈrio]. roo is at rank #13,787, tagged as averb, pronounced [ˈroo].
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 14485, this pair ranks #283,935 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of río vs roo
Shared letters: or. Private to "río": í. Private to "roo": -.
"río" · 3 letters · shape CVV · "roo" · 3 letters · shape CVV
Frequently Asked Questions
Do "río" and "roo" mean the same thing in a sentence?
In ordinary Spanish text, does "río" or "roo" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "río" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "roo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #283,935 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "río" and "roo" also get mixed up with nearby pairs, the highest-scored neighbour is "rajo vs roo". Nearby pair
Confusion rank #283,935 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.