PetrovsPietraWhich spelling fits?

Which to use

“Petro” and “Pietra” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#35,725
“Petro” frequency rank
#44,538
“Pietra” frequency rank
80263
confusion score

Side-by-Side Comparison

Feature Petro Pietra
Definition Pedro prenome feminino

Where the eye mixes Petro and Pietra

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. Petro runs 5 letters (CVCCV) against Pietra's 6 (CVVCCV) - the length gap alone is often enough to separate them once you know to check it.

5 ch
Petro
6 ch
Pietra

Look-alike desk: Petro vs Pietra

A purely visual mix-up. Petro (/ˈpe.tɾo/.) and Pietra (/piˈe.tɾɐ/ [pɪˈe.tɾɐ] AFI: /'pje.tɾɐ/ (pronúncia rápida)) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 80263, derived from the frequency rank of both members and their visual similarity.

Petro is recorded at frequency rank #35,725, classified as anoun, pronounced /ˈpe.tɾo/.. Pietra is at rank #44,538, tagged as anoun, pronounced /piˈe.tɾɐ/ [pɪˈe.tɾɐ] AFI: /'pje.tɾɐ/ (pronúncia rápida).

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 80263, this pair ranks #1,356 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of Petro vs Pietra

Shared letters: eprt. Private to "Petro": o. Private to "Pietra": ai.

"Petro" · 5 letters · shape CVCCV  ·  "Pietra" · 6 letters · shape CVVCCV

Known mistypes of this pair

  • Petroeptro · petor · petrro · pettro · ppetro · ptero
  • Pietraipetra · peitra · pierta · pietar · pietrra · piettra · pitera · ppietra

Frequently Asked Questions

Is swapping "Petro" for "Pietra" ever safe?
No. They are said differently (/ˈpe.tɾo/. versus /piˈe.tɾɐ/ [pɪˈe.tɾɐ] AFI: /'pje.tɾɐ/ (pronúncia rápida)) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "Petro" or "Pietra"?
"Petro" is the more common of the two: it sits at frequency rank #35,725 in our Portuguese list, against #44,538 for "Pietra". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "Petro" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Pietra" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,356 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "Petro" and "Pietra" also get mixed up with nearby pairs, the highest-scored neighbour is "Petro vs pito". 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 #1,356 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