larvsluxTell them apart

Quick tell: lar is a adverb, lux is a noun, so they fill different roles in a sentence.

Which to use

“lar” is an adverb and “lux” is a noun - they look or sound alike but fill different roles in a sentence.

#48,637
“lar” frequency rank
#18,246
“lux” frequency rank
66883
confusion score

Side-by-Side Comparison

Feature lar lux
Definition Trop. Unité de mesure d’éclairement lumineux du Système international, définie comme lumen par mètre carré, dont le symbole est lx.

Letter map: lar vs lux

Shared letters muted; letters that set lar and lux apart highlighted. Shared run: 1.

3 ch
lar
3 ch
lux

Grammar separator: lar vs lux

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: lar is anadverb and luxanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 66883, derived from the frequency rank of both members and their visual similarity.

lar is recorded at frequency rank #48,637, classified as anadv. 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 66883, this pair ranks #65,882 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of lar vs lux

Shared letters: l. Private to "lar": ar. Private to "lux": ux.

"lar" · 3 letters · shape CVC  ·  "lux" · 3 letters · shape CVC

Frequently Asked Questions

Do "lar" and "lux" mean the same thing in a sentence?
No - they are not even the same part of speech. "lar" is an adverb and "lux" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "lar" vs "lux" - which ranks higher?
"lux" is the more common of the two: it sits at frequency rank #18,246 in our French list, against #48,637 for "lar". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "lar" and "lux". Here's where to go from here.

  • Full dictionary entry for "lar" 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 #65,882 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "lar" and "lux" also get mixed up with nearby pairs, the highest-scored neighbour is "lar vs lep". Nearby pair

Confusion rank #65,882 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