Which to use
“fay” and “fo” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #31,488
- “fay” frequency rank
- #9,484
- “fo” frequency rank
- 40972
- confusion score
Side-by-Side Comparison
| Feature | fay | fo |
|---|---|---|
| Definition | Division d’un bloc d’ardoise. | Folio. |
Where the eye mixes fay and fo
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between fay and fo
A purely visual mix-up. fay (\fɛ\) and fo (\fɔ.ljo\) 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 40972, derived from the frequency rank of both members and their visual similarity.
fay is recorded at frequency rank #31,488, classified as anoun, pronounced \fɛ\. fo is at rank #9,484, tagged as anoun, pronounced \fɔ.ljo\.
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 40972, this pair ranks #236,556 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of fay vs fo
Shared letters: f. Private to "fay": ay. Private to "fo": o.
"fay" · 3 letters · shape CVV · "fo" · 2 letters · shape CV
Frequently Asked Questions
Is swapping "fay" for "fo" ever safe?
Frequency check: "fay" vs "fo" - which ranks higher?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "fay" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #236,556 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "fay" and "fo" also get mixed up with nearby pairs, the highest-scored neighbour is "fay vs Fee". Nearby pair
Confusion rank #236,556 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.