Which to use
“fio” is a verb and “folio” is a noun - they look or sound alike but fill different roles in a sentence.
- #33,129
- “fio” frequency rank
- #19,413
- “folio” frequency rank
- 52542
- confusion score
Side-by-Side Comparison
| Feature | fio | folio |
|---|---|---|
| Definition | Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del pretérito perfecto simple de indicativo de fiar. | Página de un libro o cuaderno. |
Where the eye mixes fio and folio
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between fio and folio
These two trip readers on the page rather than in the ear: fio is [ˈfjo] while folio is [ˈfoljo]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 52542, 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]. folio is at rank #19,413, tagged as anoun, pronounced [ˈfoljo].
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 52542, this pair ranks #92,187 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of fio vs folio
Shared letters: fio. Private to "fio": -. Private to "folio": l.
"fio" · 3 letters · shape CVV · "folio" · 5 letters · shape CVCVV
Known mistypes of this pair
- folio ← ffolio · floio · foilo · follio · foloi · oflio
Frequently Asked Questions
Is swapping "fio" for "folio" ever safe?
In ordinary Spanish text, does "fio" or "folio" show up more?
After this comparison
Eye-level mix-up between "fio" and "folio" 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 "folio" - compare definitions side by side with the headword page. Word entry
- This pair ranks #92,187 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "fio" and "folio" also get mixed up with nearby pairs, the highest-scored neighbour is "filos vs fio". 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 #92,187 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.