Which to use
“pei” is a noun and “Per” is a name - they look or sound alike but fill different roles in a sentence.
- #45,496
- “pei” frequency rank
- #3,203
- “Per” frequency rank
- 48699
- confusion score
Side-by-Side Comparison
| Feature | pei | Per |
|---|---|---|
| Definition | Decimoséptima letra del alfabeto hebreo | Pedro. Nombre propio de hombre. |
Where the eye mixes pei and Per
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: pei vs Per
These two trip readers on the page rather than in the ear: pei is [ˈpej] while Per is [ˈpæːr]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - i in “pei” becomes r in “Per”, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 48699, 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]. Per is at rank #3,203, tagged as aname, pronounced [ˈpæːr].
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 48699, this pair ranks #112,997 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of pei vs Per
Shared letters: ep. Private to "pei": i. Private to "Per": r.
"pei" · 3 letters · shape CVV · "Per" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "pei" for "Per" ever safe?
Frequency check: "pei" vs "Per" - which ranks higher?
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 "Per" - compare definitions side by side with the headword page. Word entry
- This pair ranks #112,997 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "pei" and "Per" also get mixed up with nearby pairs, the highest-scored neighbour is "pei vs prey". Nearby pair
Confusion rank #112,997 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.