Which to use
“fob” and “foi” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #25,388
- “fob” frequency rank
- #42,644
- “foi” frequency rank
- 68032
- confusion score
Side-by-Side Comparison
| Feature | fob | foi |
|---|---|---|
| Definition | A little pocket near the waistline of a pair of trousers or in a waistcoat or vest to hold money or valuables, especially a pocket watch. | A depiction of a handshake. |
Letter map: fob vs foi
Shared letters muted; letters that set fob and foi apart highlighted. Shared run: 2.
Pair insight - fob / foi
fob and foi are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by a single letter - b in “fob” becomes i in “foi”. Our composite confusion score for this pair is 68032, derived from the frequency rank of both members and their visual similarity.
fob is recorded at frequency rank #25,388, classified as anoun, pronounced /fɒb/. foi is at rank #42,644, tagged as anoun.
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 68032, this pair ranks #60,744 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of fob vs foi
Shared letters: fo. Private to "fob": b. Private to "foi": i.
"fob" · 3 letters · shape CVC · "foi" · 3 letters · shape CVV
Frequently Asked Questions
Can "fob" and "foi" be used interchangeably?
In ordinary English text, does "fob" or "foi" show up more?
After this comparison
You've compared "fob" and "foi". Here's where to go from here.
- Full dictionary entry for "fob" 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 #60,744 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "fob" and "foi" also get mixed up with nearby pairs, the highest-scored neighbour is "foi vs FOMO". Nearby pair
Confusion rank #60,744 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.