Which to use
“alto” is an adjective and “ao” is a contraction - they look or sound alike but fill different roles in a sentence.
- #413
- “alto” frequency rank
- #21,556
- “ao” frequency rank
- 21969
- confusion score
Side-by-Side Comparison
| Feature | alto | ao |
|---|---|---|
| Definition | Levantado, elevado sobre la tierra. | Contracción de la preposición a ("a") y el artículo o ("el"): (al). |
Where the eye mixes alto and ao
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses alto with ao
These two trip readers on the page rather than in the ear: alto is [ˈal̪t̪o] while ao is [ɔ]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (adjective vs contraction), which is usually the fastest check. Our composite confusion score for this pair is 21969, derived from the frequency rank of both members and their visual similarity.
alto is recorded at frequency rank #413, classified as anadj, pronounced [ˈal̪t̪o]. ao is at rank #21,556, tagged as acontraction, pronounced [ɔ].
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 21969, this pair ranks #252,513 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of alto vs ao
Shared letters: ao. Private to "alto": lt. Private to "ao": -.
"alto" · 4 letters · shape VCCV · "ao" · 2 letters · shape VV
Known mistypes of this pair
- alto ← allto · alot · altto · atlo · lato
Frequently Asked Questions
Is swapping "alto" for "ao" ever safe?
In ordinary Spanish text, does "alto" or "ao" show up more?
Useful next steps
Eye-level mix-up between "alto" and "ao" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "alto" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ao" - compare definitions side by side with the headword page. Word entry
- This pair ranks #252,513 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "alto" and "ao" also get mixed up with nearby pairs, the highest-scored neighbour is "alió vs ao". 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 #252,513 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.