Which to use
“pro” is a preposition and “puso” is a verb - they look or sound alike but fill different roles in a sentence.
- #1,421
- “pro” frequency rank
- #1,100
- “puso” frequency rank
- 2521
- confusion score
Side-by-Side Comparison
| Feature | pro | puso |
|---|---|---|
| Definition | Úsase para indicar el beneficiario de una acción o iniciativa. | Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del pretérito perfecto simple de indicativo de poner. |
Where the eye mixes pro and puso
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: pro vs puso
These two trip readers on the page rather than in the ear: pro is [ˈpɾo] while puso is [ˈpuso]. 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 (preposition vs verb), which is usually the fastest check. Our composite confusion score for this pair is 2521, derived from the frequency rank of both members and their visual similarity.
pro is recorded at frequency rank #1,421, classified as aprep, pronounced [ˈpɾo]. puso is at rank #1,100, tagged as averb, pronounced [ˈpuso].
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 2521, this pair ranks #320,148 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of pro vs puso
Shared letters: op. Private to "pro": r. Private to "puso": su.
"pro" · 3 letters · shape CCV · "puso" · 4 letters · shape CVCV
Known mistypes of this pair
- puso ← ppuso · psuo · puos · pusso · upso
Frequently Asked Questions
Can "pro" and "puso" be used interchangeably?
In ordinary Spanish text, does "pro" or "puso" show up more?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "pro" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "puso" - compare definitions side by side with the headword page. Word entry
- This pair ranks #320,148 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "pro" and "puso" also get mixed up with nearby pairs, the highest-scored neighbour is "pro vs probo". 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 #320,148 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.