Which to use
“foo” and “fût” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #43,447
- “foo” frequency rank
- #7,062
- “fût” frequency rank
- 50509
- confusion score
Side-by-Side Comparison
| Feature | foo | fût |
|---|---|---|
| Definition | Variable métasyntaxique en programmation informatique. | Bois sur lequel est monté le canon d’un fusil, d’une arquebuse, d’un pistolet, etc. |
Where the eye mixes foo and fût
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses foo with fût
A purely visual mix-up. foo (\fu\) and fût (\fy\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 50509, derived from the frequency rank of both members and their visual similarity.
foo is recorded at frequency rank #43,447, classified as anoun, pronounced \fu\. fût is at rank #7,062, tagged as anoun, pronounced \fy\.
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 50509, this pair ranks #162,107 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of foo vs fût
Shared letters: f. Private to "foo": o. Private to "fût": tû.
"foo" · 3 letters · shape CVV · "fût" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "foo" for "fût" ever safe?
Which is more common, "foo" or "fût"?
Useful next steps
Eye-level mix-up between "foo" and "fût" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "foo" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fût" - compare definitions side by side with the headword page. Word entry
- This pair ranks #162,107 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "foo" and "fût" also get mixed up with nearby pairs, the highest-scored neighbour is "Fee vs foo". Nearby pair
Confusion rank #162,107 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.