pivsPimaWhich spelling fits?

Which to use

“pi” and “Pima” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#8,073
“pi” frequency rank
#43,846
“Pima” frequency rank
51919
confusion score

Side-by-Side Comparison

Feature pi Pima
Definition The sixteenth letter of the Classical and Modern Greek alphabets and the seventeenth in Old Greek. A member of a group of American Indians living in an area consisting of what is now central and southern Arizona (USA) and Sonora (Mexico).

Where the eye mixes pi and Pima

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

2 ch
pi
4 ch
Pima

Why the eye confuses pi with Pima

A purely visual mix-up. pi (/paɪ/) and Pima (/ˈpimə/) 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 “Pima”. Our composite confusion score for this pair is 51919, derived from the frequency rank of both members and their visual similarity.

pi is recorded at frequency rank #8,073, classified as anoun, pronounced /paɪ/. Pima is at rank #43,846, tagged as anoun, pronounced /ˈpimə/.

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 51919, this pair ranks #161,389 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of pi vs Pima

Shared letters: ip. Private to "pi": -. Private to "Pima": am.

"pi" · 2 letters · shape CV  ·  "Pima" · 4 letters · shape CVCV

Known mistypes of this pair

  • Pimaipma · piam · pimma · pmia · ppima

Frequently Asked Questions

Can "pi" and "Pima" be used interchangeably?
No. They are said differently (/paɪ/ versus /ˈpimə/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "pi" or "Pima"?
"pi" is the more common of the two: it sits at frequency rank #8,073 in our English list, against #43,846 for "Pima". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "pi" and "Pima" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "pi" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Pima" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #161,389 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "pi" and "Pima" also get mixed up with nearby pairs, the highest-scored neighbour is "Pima vs PPA". 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 #161,389 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list