perovspetConfusable pair

Quick tell: pero is a conjunction, pet is a noun, so they fill different roles in a sentence.

Which to use

“pero” is a conjunction and “pet” is a noun - they look or sound alike but fill different roles in a sentence.

#26
“pero” frequency rank
#21,434
“pet” frequency rank
21460
confusion score

Side-by-Side Comparison

Feature pero pet
Definition Úsase para introducir una proposición que contradice o se contrapone a la anterior. Pedo.

Where the eye mixes pero and pet

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

4 ch
pero
3 ch
pet

Why the eye confuses pero with pet

These two trip readers on the page rather than in the ear: pero is [ˈpeɾo] while pet is [ˈpɛt]. 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 (conjunction vs noun), which is usually the fastest check. Our composite confusion score for this pair is 21460, derived from the frequency rank of both members and their visual similarity.

pero is recorded at frequency rank #26, classified as aconj, pronounced [ˈpeɾo]. pet is at rank #21,434, tagged as anoun, pronounced [ˈpɛt].

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 21460, this pair ranks #254,845 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of pero vs pet

Shared letters: ep. Private to "pero": or. Private to "pet": t.

"pero" · 4 letters · shape CVCV  ·  "pet" · 3 letters · shape CVC

Known mistypes of this pair

  • peroepro · ppero · preo

Frequently Asked Questions

Is swapping "pero" for "pet" ever safe?
No - they are not even the same part of speech. "pero" is a conjunction and "pet" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "pero" or "pet"?
"pero" is the more common of the two: it sits at frequency rank #26 in our Spanish list, against #21,434 for "pet". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

  • Full dictionary entry for "pero" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "pet" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #254,845 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "pero" and "pet" also get mixed up with nearby pairs, the highest-scored neighbour is "pet 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 #254,845 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