Which to use
“folie” is a noun and “folio” is an adverb - they look or sound alike but fill different roles in a sentence.
- #13,826
- “folie” frequency rank
- #49,679
- “folio” frequency rank
- 63505
- confusion score
Side-by-Side Comparison
| Feature | folie | folio |
|---|---|---|
| Definition | Irrsinn, Tollheit, Verrücktheit, Wahnsinn, Wahnwitz | auf dem Blatt (stehend, verzeichnet) |
Where the spellings diverge
Shared letters are muted; the letters that actually set folie and folio apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
folie and folio form a confusable pair in the German index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by a single letter - e in “folie” becomes o in “folio” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 63505, derived from the frequency rank of both members and their visual similarity.
folie is recorded at frequency rank #13,826, classified as anoun, pronounced [fɔ.li]. folio is at rank #49,679, tagged as anadv, pronounced [ˈfoːli̯o].
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 63505, this pair ranks #674,427 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "folie" and "folio" be used interchangeably?
Remembering folie vs folio
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “folie”; for an adverb, it's “folio”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “folie” entry
- Browse more pairs most likely to be confused. Most confusable