lux
\lyks\
The verdict
“lux” sits in 20 confusable pairs (corpus #18,246) as a noun. The look-alike neighbours are the real trap.
- #18,246
- frequency rank, French
- 2,567
- “L” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Unité de mesure d’éclairement lumineux du Système international, définie comme lumen par mètre carré, dont le symbole est lx.
Corpus desk
Index FR-lux · lux · French
lux · rank #18,246 · 0 variants · 20 confusables
- FREQ-MID #18,246
- LEN-MID 3 letters
- VOW-1 1 vowel
- CONFUS-HIGH 20 pairs
- VAR-0 0 variants
- BOOK-MID 2,567
- PHOTO-FINISH liturgie
Nearest frequency peer: liturgie (-1 rank slots)
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Voisins de fréquence du confusable « lux »
Pairs de poids proche dans le corpus, séparés des confusables ci-dessous
- lentille
lentille
81,758 corpus weight
- libertaire
libertaire
81,757 corpus weight
- liturgie
liturgie
81,756 corpus weight
- lux
lux
81,755 corpus weight
- léopard
léopard
81,754 corpus weight
- maille
maille
81,753 corpus weight
What this shows Les barres placent « lux » face aux lemmes français les plus proches par rang, pas un reprint du bureau des confusables.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | lux |
| Language | French |
| Part of speech | Noun |
| IPA | \lyks\ |
| Letters | 3 |
| Frequency rank | #18,246 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Rang de corpus près des confusables de « lux »
Easy to mix with look-alikes
The spelling risk for lux is neighbouring look-alikes ("lv", "lys", …), not just typos; it is anoun pronounced \lyks\. Frequency #18,246 among 2,567 “L” headwords. Gloss: "Unité de mesure d’éclairement lumineux du Système international, définie comme lumen par mètre carré, dont le symbole est lx.".
The misspelling generator found no plausible variants for lux, typically a sign the spelling maps closely to how the word sounds. It also participates in 20 confusable-pair relationships, "lv", "lys", "luz", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.
Wiktionary doesn't record an etymology for this headword, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct French form is lux, spelled L-U-X.
Definition
- 1Unité de mesure d’éclairement lumineux du Système international, définie comme lumen par mètre carré, dont le symbole est lx.
Recorded use
Wiktionary examplesThese source excerpts show how lux appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Les besoins en énergie lumineuse varient, au cours de la période de végétation de 5000 lux (germination) à 50 000 lux (pollinisation).
Le plein soleil donne jusqu’à 100 kilolux d’éclairement, la Lune environ 0,1 lux, et le ciel étoilé à peine 1 millilux.
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 French corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Similar French words by spelling shape
Same letter count and similar misspelling depth for "lux", not the corpus desk frequency band.
Same letter count
Frequency-ranked French headwords with 3 letters (nearest by frequency rank).