Which to use
“pior” is a noun and “pro” is a preposition - they look or sound alike but fill different roles in a sentence.
- #745
- “pior” frequency rank
- #1,173
- “pro” frequency rank
- 1918
- confusion score
Side-by-Side Comparison
| Feature | pior | pro |
|---|---|---|
| Definition | o que é inferior a tudo o mais | para |
Where the eye mixes pior and pro
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: pior vs pro
These two trip readers on the page rather than in the ear: pior is /pɪ.ˈɒɹ/ while pro is /ˈprɔ/ ouvir^(fonte ?). 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 (noun vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 1918, derived from the frequency rank of both members and their visual similarity.
pior is recorded at frequency rank #745, classified as anoun, pronounced /pɪ.ˈɒɹ/. pro is at rank #1,173, tagged as aprep, pronounced /ˈprɔ/ ouvir^(fonte ?).
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 1918, this pair ranks #73,607 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of pior vs pro
Shared letters: opr. Private to "pior": i. Private to "pro": -.
"pior" · 4 letters · shape CVVC · "pro" · 3 letters · shape CCV
Known mistypes of this pair
- pior ← ipor · piorr · piro · poir · ppior
Frequently Asked Questions
Do "pior" and "pro" mean the same thing in a sentence?
Frequency check: "pior" vs "pro" - which ranks higher?
What to do next
Eye-level mix-up between "pior" and "pro" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "pior" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "pro" - compare definitions side by side with the headword page. Word entry
- This pair ranks #73,607 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "pior" and "pro" also get mixed up with nearby pairs, the highest-scored neighbour is "pix vs pro". 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 #73,607 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.