Which to use
“liber” is a noun and “libre” is an adjective - they look or sound alike but fill different roles in a sentence.
- #29,419
- “liber” frequency rank
- #648
- “libre” frequency rank
- 30067
- confusion score
Side-by-Side Comparison
| Feature | liber | libre |
|---|---|---|
| Definition | Tissu végétal secondaire produit par le cambium des tiges et des racines, conducteur de la sève élaborée. | Qui a le pouvoir de faire ce qu’il veut, d’agir ou de ne pas agir, par opposition à esclave, servile, ou par opposition à captif, prisonnier. |
Where the eye mixes liber and libre
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Look-alike desk: liber vs libre
These two trip readers on the page rather than in the ear: liber is \li.bɛʁ\ while libre is \libʁ\. Spoken aloud the problem disappears. In writing it persists, because they differ only by swapping two adjacent letters (er ↔ re) - a transposition the eye reads straight past, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 30067, derived from the frequency rank of both members and their visual similarity.
liber is recorded at frequency rank #29,419, classified as anoun, pronounced \li.bɛʁ\. libre is at rank #648, tagged as anadj, pronounced \libʁ\.
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 30067, this pair ranks #312,676 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of liber vs libre
Shared letters: beilr. Private to "liber": -. Private to "libre": -.
"liber" · 5 letters · shape CVCVC · "libre" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Do "liber" and "libre" mean the same thing in a sentence?
In ordinary French text, does "liber" or "libre" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "liber" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "libre" - compare definitions side by side with the headword page. Word entry
- This pair ranks #312,676 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "liber" and "libre" also get mixed up with nearby pairs, the highest-scored neighbour is "liber vs liker". 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 #312,676 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.