Which to use
“preciso” is an adjective and “previsão” is a noun - they look or sound alike but fill different roles in a sentence.
- #252
- “preciso” frequency rank
- #4,336
- “previsão” frequency rank
- 4588
- confusion score
Side-by-Side Comparison
| Feature | preciso | previsão |
|---|---|---|
| Definition | necessário, importante: | ato ou efeito de prever |
Where the eye mixes preciso and previsão
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. preciso runs 7 letters (CCVCVCV) against previsão's 8 (CCVCVCVV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses preciso with previsão
These two trip readers on the page rather than in the ear: preciso is /pɾɨ.ˈsi.zu/ while previsão is /pɾɨ.vi.ˈzɐ̃w̃/. 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 4588, derived from the frequency rank of both members and their visual similarity.
preciso is recorded at frequency rank #252, classified as anadj, pronounced /pɾɨ.ˈsi.zu/. previsão is at rank #4,336, tagged as anoun, pronounced /pɾɨ.vi.ˈzɐ̃w̃/.
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 4588, this pair ranks #70,275 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of preciso vs previsão
Shared letters: eioprs. Private to "preciso": c. Private to "previsão": vã.
"preciso" · 7 letters · shape CCVCVCV · "previsão" · 8 letters · shape CCVCVCVV
Known mistypes of this pair
- preciso ← perciso · ppreciso · prceiso · precciso · precios · precisso · precsio · preicso
Frequently Asked Questions
Do "preciso" and "previsão" mean the same thing in a sentence?
Frequency check: "preciso" vs "previsão" - which ranks higher?
Useful next steps
Eye-level mix-up between "preciso" and "previsão" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "preciso" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "previsão" - compare definitions side by side with the headword page. Word entry
- This pair ranks #70,275 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "preciso" and "previsão" also get mixed up with nearby pairs, the highest-scored neighbour is "predição vs previsão". 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 #70,275 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.