Which to use
“lit” and “lux” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #771
- “lit” frequency rank
- #18,246
- “lux” frequency rank
- 19017
- confusion score
Side-by-Side Comparison
| Feature | lit | lux |
|---|---|---|
| Definition | Meuble sur lequel on se couche pour dormir, généralement composé d’un cadre de bois ou de métal, qu’on garnit d’un sommier ou d’une paillasse, d’un ou plusieurs matelas, d’un traversin, d’un ou plusieurs oreillers, de draps et de couvertures. | Unité de mesure d’éclairement lumineux du Système international, définie comme lumen par mètre carré, dont le symbole est lx. |
Where the eye mixes lit and lux
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses lit with lux
A purely visual mix-up. lit (\li\) and lux (\lyks\) 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 2 positions. Our composite confusion score for this pair is 19017, derived from the frequency rank of both members and their visual similarity.
lit is recorded at frequency rank #771, classified as anoun, pronounced \li\. lux is at rank #18,246, tagged as anoun, pronounced \lyks\.
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 19017, this pair ranks #375,438 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of lit vs lux
Shared letters: l. Private to "lit": it. Private to "lux": ux.
"lit" · 3 letters · shape CVC · "lux" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "lit" for "lux" ever safe?
In ordinary French text, does "lit" or "lux" show up more?
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 "lit" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "lux" - compare definitions side by side with the headword page. Word entry
- This pair ranks #375,438 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "lit" and "lux" also get mixed up with nearby pairs, the highest-scored neighbour is "lep vs lux". Nearby pair
Confusion rank #375,438 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.