penavspezWhat's the difference?

Which to use

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

#616
“pena” frequency rank
#5,028
“pez” frequency rank
5644
confusion score

Side-by-Side Comparison

Feature pena pez
Definition Castigo impuesto por autoridad legítima a quien ha cometido un delito o falta. Cualquiera de unas 30 000 especies de animales vertebrados, caracterizados por ser los únicos adaptados a respirar agua durante todo su ciclo vital. Forman un grupo sin rigor taxonómico que comprende varios grupos evolutivos diferentes, que sólo tienen en común su adaptación al medio acuático.

Where the eye mixes pena and pez

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
pena
3 ch
pez

Look-alike desk: pena vs pez

A purely visual mix-up. pena ([ˈpena]) and pez ([ˈpes]) 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 5644, derived from the frequency rank of both members and their visual similarity.

pena is recorded at frequency rank #616, classified as anoun, pronounced [ˈpena]. pez is at rank #5,028, tagged as anoun, pronounced [ˈpes].

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 5644, this pair ranks #313,076 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of pena vs pez

Shared letters: ep. Private to "pena": an. Private to "pez": z.

"pena" · 4 letters · shape CVCV  ·  "pez" · 3 letters · shape CVC

Known mistypes of this pair

  • penaepna · pean · penna · pnea · ppena

Frequently Asked Questions

Is swapping "pena" for "pez" ever safe?
No. They are said differently ([ˈpena] versus [ˈpes]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "pena" or "pez" show up more?
"pena" is the more common of the two: it sits at frequency rank #616 in our Spanish list, against #5,028 for "pez". 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 "pena" and "pez" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "pena" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "pez" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #313,076 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "pena" and "pez" also get mixed up with nearby pairs, the highest-scored neighbour is "pez vs prey". 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 #313,076 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