Which to use
“fio” is a verb and “fox” is a noun - they look or sound alike but fill different roles in a sentence.
- #33,129
- “fio” frequency rank
- #5,109
- “fox” frequency rank
- 38238
- confusion score
Side-by-Side Comparison
| Feature | fio | fox |
|---|---|---|
| Definition | Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del pretérito perfecto simple de indicativo de fiar. | (Vulpes vulpes) Zorro. |
Where the eye mixes fio and fox
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: fio vs fox
These two trip readers on the page rather than in the ear: fio is [ˈfjo] while fox is /fɒks/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 38238, derived from the frequency rank of both members and their visual similarity.
fio is recorded at frequency rank #33,129, classified as averb, pronounced [ˈfjo]. fox is at rank #5,109, tagged as anoun, pronounced /fɒks/.
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 38238, this pair ranks #171,092 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of fio vs fox
Shared letters: fo. Private to "fio": i. Private to "fox": x.
"fio" · 3 letters · shape CVV · "fox" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "fio" for "fox" ever safe?
Frequency check: "fio" vs "fox" - which ranks higher?
Useful next steps
Eye-level mix-up between "fio" and "fox" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "fio" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fox" - compare definitions side by side with the headword page. Word entry
- This pair ranks #171,092 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "fio" and "fox" also get mixed up with nearby pairs, the highest-scored neighbour is "filos vs fio". Nearby pair
Confusion rank #171,092 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.