pisovspostoConfusable pair

Quick tell: piso is a noun, posto is an adjective, so they fill different roles in a sentence.

Which to use

“piso” is a noun and “posto” is an adjective - they look or sound alike but fill different roles in a sentence.

#5,780
“piso” frequency rank
#1,722
“posto” frequency rank
7502
confusion score

Side-by-Side Comparison

Feature piso posto
Definition modo de pisar ou andar colocado, plantado, posicionado

Where the eye mixes piso and posto

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
piso
5 ch
posto

Visual trap between piso and posto

These two trip readers on the page rather than in the ear: piso is /ˈpi.zu/ while posto is /ˈpoʃ.tʊ/. 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 adjective), which is usually the fastest check. Our composite confusion score for this pair is 7502, derived from the frequency rank of both members and their visual similarity.

piso is recorded at frequency rank #5,780, classified as anoun, pronounced /ˈpi.zu/. posto is at rank #1,722, tagged as anadj, pronounced /ˈpoʃ.tʊ/.

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 7502, this pair ranks #66,620 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of piso vs posto

Shared letters: ops. Private to "piso": i. Private to "posto": t.

"piso" · 4 letters · shape CVCV  ·  "posto" · 5 letters · shape CVCCV

Known mistypes of this pair

  • pisoipso · pisso · ppiso · psio
  • postoopsto · posot · possto · postto · potso · pposto · psoto

Frequently Asked Questions

Is swapping "piso" for "posto" ever safe?
No - they are not even the same part of speech. "piso" is a noun and "posto" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "piso" or "posto"?
"posto" is the more common of the two: it sits at frequency rank #1,722 in our Portuguese list, against #5,780 for "piso". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "piso" and "posto" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "piso" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "posto" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #66,620 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "piso" and "posto" also get mixed up with nearby pairs, the highest-scored neighbour is "piso vs pix". 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 #66,620 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list