peivsPepeWhat's the difference?

Quick tell: pei is a noun, Pepe is a name, so they fill different roles in a sentence.

Which to use

“pei” is a noun and “Pepe” is a name - they look or sound alike but fill different roles in a sentence.

#45,496
“pei” frequency rank
#6,715
“Pepe” frequency rank
52211
confusion score

Side-by-Side Comparison

Feature pei Pepe
Definition Decimoséptima letra del alfabeto hebreo Hipocorístico de José.

Where the eye mixes pei and Pepe

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. pei runs 3 letters (CVV) against Pepe's 4 (CVCV) - the length gap alone is often enough to separate them once you know to check it.

3 ch
pei
4 ch
Pepe

Visual trap between pei and Pepe

These two trip readers on the page rather than in the ear: pei is [ˈpej] while Pepe is [ˈpepe]. 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 (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 52211, derived from the frequency rank of both members and their visual similarity.

pei is recorded at frequency rank #45,496, classified as anoun, pronounced [ˈpej]. Pepe is at rank #6,715, tagged as aname, pronounced [ˈpepe].

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 52211, this pair ranks #93,849 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of pei vs Pepe

Shared letters: ep. Private to "pei": i. Private to "Pepe": -.

"pei" · 3 letters · shape CVV  ·  "Pepe" · 4 letters · shape CVCV

Known mistypes of this pair

  • Pepe ← eppe · peep · peppe · ppee · ppepe

Frequently Asked Questions

Is swapping "pei" for "Pepe" ever safe?
No - they are not even the same part of speech. "pei" is a noun and "Pepe" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "pei" or "Pepe"?
"Pepe" is the more common of the two: it sits at frequency rank #6,715 in our Spanish list, against #45,496 for "pei". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "pei" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Pepe" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #93,849 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "pei" and "Pepe" also get mixed up with nearby pairs, the highest-scored neighbour is "pei 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 #93,849 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