passvspsiTell them apart

Which to use

“pass” and “psi” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#9,211
“pass” frequency rank
#29,927
“psi” frequency rank
39138
confusion score

Side-by-Side Comparison

Feature pass psi
Definition Passe, carte d’abonnement (pour les transports en commun, les musées, etc). ψ, Ψ, vingt-troisième lettre et dix-septième consonne de l’alphabet grec.

Where the eye mixes pass and psi

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

4 ch
pass
3 ch
psi

Visual trap between pass and psi

A purely visual mix-up. pass (\pas\) and psi (\psi\) 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 1 letter(s) in length. Our composite confusion score for this pair is 39138, derived from the frequency rank of both members and their visual similarity.

pass is recorded at frequency rank #9,211, classified as anoun, pronounced \pas\. psi is at rank #29,927, tagged as anoun, pronounced \psi\.

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 39138, this pair ranks #250,224 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of pass vs psi

Shared letters: ps. Private to "pass": a. Private to "psi": i.

"pass" · 4 letters · shape CVCC  ·  "psi" · 3 letters · shape CCV

Known mistypes of this pair

  • passapss · ppass · psas

Frequently Asked Questions

Can "pass" and "psi" be used interchangeably?
No. They are said differently (\pas\ versus \psi\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "pass" vs "psi" - which ranks higher?
"pass" is the more common of the two: it sits at frequency rank #9,211 in our French list, against #29,927 for "psi". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "pass" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "psi" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #250,224 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "pass" and "psi" also get mixed up with nearby pairs, the highest-scored neighbour is "pio vs psi". 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 #250,224 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list