Which to use
“pi” and “piso” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #9,089
- “pi” frequency rank
- #5,780
- “piso” frequency rank
- 14869
- confusion score
Side-by-Side Comparison
| Feature | pi | piso |
|---|---|---|
| Definition | a letra Π (minúscula: π) do alfabeto grego | modo de pisar ou andar |
Where the eye mixes pi and piso
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses pi with piso
A purely visual mix-up. pi (/ˈpi/) and piso (/ˈpi.zu/) 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 2 extra letter(s) - “pi” sits inside “piso”. Our composite confusion score for this pair is 14869, derived from the frequency rank of both members and their visual similarity.
pi is recorded at frequency rank #9,089, classified as anoun, pronounced /ˈpi/. piso is at rank #5,780, tagged as anoun, pronounced /ˈpi.zu/.
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 14869, this pair ranks #57,097 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of pi vs piso
Shared letters: ip. Private to "pi": -. Private to "piso": os.
"pi" · 2 letters · shape CV · "piso" · 4 letters · shape CVCV
Known mistypes of this pair
- piso ← ipso · pisso · ppiso · psio
Frequently Asked Questions
Can "pi" and "piso" be used interchangeably?
Frequency check: "pi" vs "piso" - which ranks higher?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "pi" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "piso" - compare definitions side by side with the headword page. Word entry
- This pair ranks #57,097 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "pi" and "piso" also get mixed up with nearby pairs, the highest-scored neighbour is "pi vs pix". 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 #57,097 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.