portavspostoTell them apart

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

Which to use

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

#832
“porta” frequency rank
#1,722
“posto” frequency rank
2554
confusion score

Side-by-Side Comparison

Feature porta posto
Definition peça de madeira, metal ou vidro usada para fechar o buraco aberto numa construção por onde pessoas passam de um cômodo para outro ou de dentro para fora da construção colocado, plantado, posicionado

Where the eye mixes porta and posto

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

5 ch
porta
5 ch
posto

Why the eye confuses porta with posto

These two trip readers on the page rather than in the ear: porta is /ˈpɔɾ.tɐ/ while posto is /ˈpoʃ.tʊ/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 2554, derived from the frequency rank of both members and their visual similarity.

porta is recorded at frequency rank #832, classified as anoun, pronounced /ˈpɔɾ.tɐ/. 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 2554, this pair ranks #72,799 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of porta vs posto

Shared letters: opt. Private to "porta": ar. Private to "posto": s.

"porta" · 5 letters · shape CVCCV  ·  "posto" · 5 letters · shape CVCCV

Known mistypes of this pair

  • portaoprta · porat · porrta · portta · potra · pporta · prota
  • postoopsto · posot · possto · postto · potso · pposto · psoto

Frequently Asked Questions

Can "porta" and "posto" be used interchangeably?
No - they are not even the same part of speech. "porta" is a noun and "posto" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "porta" or "posto" show up more?
"porta" is the more common of the two: it sits at frequency rank #832 in our Portuguese list, against #1,722 for "posto". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "porta" 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 #72,799 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "porta" and "posto" also get mixed up with nearby pairs, the highest-scored neighbour is "Pluto vs posto". 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 #72,799 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