Which to use
“folio” and “fósil” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #19,413
- “folio” frequency rank
- #26,862
- “fósil” frequency rank
- 46275
- confusion score
Side-by-Side Comparison
| Feature | folio | fósil |
|---|---|---|
| Definition | Página de un libro o cuaderno. | Restos de seres vivos o rastros de su actividad, conservados en los estratos de las rocas. |
Where the eye mixes folio and fósil
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. folio (CVCVV) and fósil (CVCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Why the eye confuses folio with fósil
A purely visual mix-up. folio ([ˈfoljo]) and fósil ([ˈfosil]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 46275, derived from the frequency rank of both members and their visual similarity.
folio is recorded at frequency rank #19,413, classified as anoun, pronounced [ˈfoljo]. fósil is at rank #26,862, tagged as anoun, pronounced [ˈfosil].
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 46275, this pair ranks #126,677 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of folio vs fósil
Shared letters: fil. Private to "folio": o. Private to "fósil": só.
"folio" · 5 letters · shape CVCVV · "fósil" · 5 letters · shape CVCVC
Known mistypes of this pair
- folio ← ffolio · floio · foilo · follio · foloi · oflio
Frequently Asked Questions
Is swapping "folio" for "fósil" ever safe?
Which is more common, "folio" or "fósil"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "folio" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fósil" - compare definitions side by side with the headword page. Word entry
- This pair ranks #126,677 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "folio" and "fósil" also get mixed up with nearby pairs, the highest-scored neighbour is "falo vs folio". 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 #126,677 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.