Which to use
“pei” and “pis” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #45,496
- “pei” frequency rank
- #19,527
- “pis” frequency rank
- 65023
- confusion score
Side-by-Side Comparison
| Feature | pei | pis |
|---|---|---|
| Definition | Decimoséptima letra del alfabeto hebreo | Secreción líquida de los riñones, conducida a la vejiga por los uréteres y expelida por la uretra. |
Where the eye mixes pei and pis
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. pei (CVV) and pis (CVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Look-alike desk: pei vs pis
A purely visual mix-up. pei ([ˈpej]) and pis ([ˈpis]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 65023, 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]. pis is at rank #19,527, tagged as anoun, pronounced [ˈpis].
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 65023, this pair ranks #43,860 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of pei vs pis
Shared letters: ip. Private to "pei": e. Private to "pis": s.
"pei" · 3 letters · shape CVV · "pis" · 3 letters · shape CVC
Frequently Asked Questions
Do "pei" and "pis" mean the same thing in a sentence?
Frequency check: "pei" vs "pis" - which ranks higher?
What to do next
Eye-level mix-up between "pei" and "pis" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "pei" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "pis" - compare definitions side by side with the headword page. Word entry
- This pair ranks #43,860 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "pei" and "pis" also get mixed up with nearby pairs, the highest-scored neighbour is "pei vs prey". Nearby pair
Confusion rank #43,860 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.