Which to use
“fion” and “foo” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #27,064
- “fion” frequency rank
- #43,447
- “foo” frequency rank
- 70511
- confusion score
Side-by-Side Comparison
| Feature | fion | foo |
|---|---|---|
| Definition | Coup, attaque physique ^([2]). | Variable métasyntaxique en programmation informatique. |
Where the eye mixes fion and foo
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between fion and foo
A purely visual mix-up. fion (\fjɔ̃\) and foo (\fu\) 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 70511, derived from the frequency rank of both members and their visual similarity.
fion is recorded at frequency rank #27,064, classified as anoun, pronounced \fjɔ̃\. foo is at rank #43,447, tagged as anoun, pronounced \fu\.
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 70511, this pair ranks #51,060 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of fion vs foo
Shared letters: fo. Private to "fion": in. Private to "foo": -.
"fion" · 4 letters · shape CVVC · "foo" · 3 letters · shape CVV
Known mistypes of this pair
- fion ← ffion · fino · fionn · ifon
Frequently Asked Questions
Do "fion" and "foo" mean the same thing in a sentence?
In ordinary French text, does "fion" or "foo" show up more?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "fion" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "foo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #51,060 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "fion" and "foo" also get mixed up with nearby pairs, the highest-scored neighbour is "Fee vs foo". 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 #51,060 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.