perrovspuercoTell them apart

Which to use

“perro” and “puerco” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#1,119
“perro” frequency rank
#18,055
“puerco” frequency rank
19174
confusion score

Side-by-Side Comparison

Feature perro puerco
Definition (Canis lupus familiaris) Variedad doméstica del lobo de muchas y diversas razas, compañero del hombre desde tiempos prehistóricos. (Sus scrofa domesticus) Animal mamífero, artiodáctilo, de cuerpo robusto y piel gruesa, domesticado desde la Antigüedad para aprovechar su carne y su cuero. Es una variedad de la misma especie que en su forma salvaje se conoce como jabalí.

Where the eye mixes perro and puerco

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

5 ch
perro
6 ch
puerco

Visual trap between perro and puerco

A purely visual mix-up. perro ([ˈpero]) and puerco ([ˈpweɾko]) 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 19174, derived from the frequency rank of both members and their visual similarity.

perro is recorded at frequency rank #1,119, classified as anoun, pronounced [ˈpero]. puerco is at rank #18,055, tagged as anoun, pronounced [ˈpweɾko].

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 19174, this pair ranks #264,870 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of perro vs puerco

Shared letters: eopr. Private to "perro": -. Private to "puerco": cu.

"perro" · 5 letters · shape CVCCV  ·  "puerco" · 6 letters · shape CVVCCV

Known mistypes of this pair

  • perro ← eprro · peror · pperro · prero
  • puerco ← peurco · ppuerco · puecro · puercco · pueroc · puerrco · pureco · uperco

Frequently Asked Questions

Is swapping "perro" for "puerco" ever safe?
No. They are said differently ([ˈpero] versus [ˈpweɾko]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "perro" or "puerco" show up more?
"perro" is the more common of the two: it sits at frequency rank #1,119 in our Spanish list, against #18,055 for "puerco". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "perro" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "puerco" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #264,870 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "perro" and "puerco" also get mixed up with nearby pairs, the highest-scored neighbour is "púbico vs puerco". 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 #264,870 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list