laïcvsluiWhat's the difference?

Quick tell: laïc is a adjective, lui is a pronoun, so they fill different roles in a sentence.

Which to use

“laïc” is an adjective and “lui” is a pronoun - they look or sound alike but fill different roles in a sentence.

#19,892
“laïc” frequency rank
#68
“lui” frequency rank
19960
confusion score

Side-by-Side Comparison

Feature laïc lui
Definition Qualifie le caractère des personnes ou des choses ne faisant pas partie d’une institution religieuse. Pronom clitique de la troisième personne du singulier épicène du complément d’objet indirect.

Where the eye mixes laïc and lui

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

4 ch
laïc
3 ch
lui

Why the eye confuses laïc with lui

These two trip readers on the page rather than in the ear: laïc is \la.ik\ while lui is \lɥi\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 19960, derived from the frequency rank of both members and their visual similarity.

laïc is recorded at frequency rank #19,892, classified as anadj, pronounced \la.ik\. lui is at rank #68, tagged as apron, pronounced \lɥi\.

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 19960, this pair ranks #370,658 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of laïc vs lui

Shared letters: l. Private to "laïc": acï. Private to "lui": iu.

"laïc" · 4 letters · shape CVCC  ·  "lui" · 3 letters · shape CVV

Frequently Asked Questions

Do "laïc" and "lui" mean the same thing in a sentence?
No - they are not even the same part of speech. "laïc" is an adjective and "lui" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "laïc" vs "lui" - which ranks higher?
"lui" is the more common of the two: it sits at frequency rank #68 in our French list, against #19,892 for "laïc". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "laïc" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "lui" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #370,658 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "laïc" and "lui" also get mixed up with nearby pairs, the highest-scored neighbour is "lago vs laïc". Nearby pair

Confusion rank #370,658 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list