Which to use
“foll” is an adjective and “foo” is a noun - they look or sound alike but fill different roles in a sentence.
- #35,043
- “foll” frequency rank
- #43,447
- “foo” frequency rank
- 78490
- confusion score
Side-by-Side Comparison
| Feature | foll | foo |
|---|---|---|
| Definition | Fou. | Variable métasyntaxique en programmation informatique. |
Where the eye mixes foll and foo
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. foll runs 4 letters (CVCC) against foo's 3 (CVV) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: foll vs foo
These two trip readers on the page rather than in the ear: foll is \ˈfɔlː\ while foo is \fu\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 78490, derived from the frequency rank of both members and their visual similarity.
foll is recorded at frequency rank #35,043, classified as anadj, pronounced \ˈfɔlː\. 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 78490, this pair ranks #25,599 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of foll vs foo
Shared letters: fo. Private to "foll": l. Private to "foo": -.
"foll" · 4 letters · shape CVCC · "foo" · 3 letters · shape CVV
Known mistypes of this pair
- foll ← ffoll · flol · ofll
Frequently Asked Questions
Is swapping "foll" for "foo" ever safe?
In ordinary French text, does "foll" or "foo" show up more?
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 "foll" 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 #25,599 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "foll" 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 #25,599 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.