LHvsluxWhat's the difference?

Which to use

“LH” and “lux” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#44,023
“LH” frequency rank
#18,246
“lux” frequency rank
62269
confusion score

Side-by-Side Comparison

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

Where the eye mixes LH and lux

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

2 ch
LH
3 ch
lux

Visual trap between LH and lux

A purely visual mix-up. LH (\ɛl.aʃ\) 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 differ by 1 letter(s) in length. Our composite confusion score for this pair is 62269, derived from the frequency rank of both members and their visual similarity.

LH is recorded at frequency rank #44,023, classified as anoun, pronounced \ɛl.aʃ\. 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 62269, this pair ranks #87,974 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of LH vs lux

Shared letters: l. Private to "LH": h. Private to "lux": ux.

"LH" · 2 letters · shape CC  ·  "lux" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "LH" for "lux" ever safe?
No. They are said differently (\ɛl.aʃ\ versus \lyks\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "LH" or "lux" show up more?
"lux" is the more common of the two: it sits at frequency rank #18,246 in our French list, against #44,023 for "LH". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "LH" and "lux" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "LH" 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 #87,974 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "LH" and "lux" also get mixed up with nearby pairs, the highest-scored neighbour is "lep vs LH". Nearby pair

Confusion rank #87,974 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