Which to use
“FB” and “foi” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #11,047
- “FB” frequency rank
- #1,478
- “foi” frequency rank
- 12525
- confusion score
Side-by-Side Comparison
| Feature | FB | foi |
|---|---|---|
| Definition | Frère du père. Oncle paternel. On est pour son FB un BS ou une BD. | Croyance aux dogmes de la religion, en Dieu. |
Where the eye mixes FB and foi
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: FB vs foi
A purely visual mix-up. FB (\ɛf.be\) and foi (\fwa\) 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 12525, derived from the frequency rank of both members and their visual similarity.
FB is recorded at frequency rank #11,047, classified as anoun, pronounced \ɛf.be\. foi is at rank #1,478, tagged as anoun, pronounced \fwa\.
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 12525, this pair ranks #404,895 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of FB vs foi
Shared letters: f. Private to "FB": b. Private to "foi": io.
"FB" · 2 letters · shape CC · "foi" · 3 letters · shape CVV
Frequently Asked Questions
Is swapping "FB" for "foi" ever safe?
Frequency check: "FB" vs "foi" - which ranks higher?
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 "FB" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "foi" - compare definitions side by side with the headword page. Word entry
- This pair ranks #404,895 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "FB" and "foi" also get mixed up with nearby pairs, the highest-scored neighbour is "FB vs Fee". Nearby pair
Confusion rank #404,895 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.