Which to use
“lis” and “lux” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #20,413
- “lis” frequency rank
- #23,482
- “lux” frequency rank
- 43895
- confusion score
Side-by-Side Comparison
| Feature | lis | lux |
|---|---|---|
| Definition | (Iris) Planta de la familia de las irídeas, formada por tallos que miden generalmente entre cinco y seis decímetros de largo, con hojas ensiformes que tienen cerca de la mitad de esa longitud, y que terminan en flores de gran tamaño, con seis pétalos de vivos colores, generalmente morado, azul o blanco. | Unidad derivada del Sistema Internacional de Unidades para la iluminancia o nivel de iluminación, equivalente a un lumen por metro cuadrado. |
Where the eye mixes lis and lux
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses lis with lux
A purely visual mix-up. lis ([ˈlis]) and lux ([ˈluks]) 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 43895, derived from the frequency rank of both members and their visual similarity.
lis is recorded at frequency rank #20,413, classified as anoun, pronounced [ˈlis]. lux is at rank #23,482, tagged as anoun, pronounced [ˈluks].
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 43895, this pair ranks #140,078 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of lis vs lux
Shared letters: l. Private to "lis": is. Private to "lux": ux.
"lis" · 3 letters · shape CVC · "lux" · 3 letters · shape CVC
Frequently Asked Questions
Do "lis" and "lux" mean the same thing in a sentence?
Frequency check: "lis" vs "lux" - which ranks higher?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "lis" 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 #140,078 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "lis" and "lux" also get mixed up with nearby pairs, the highest-scored neighbour is "lac vs lux". Nearby pair
Confusion rank #140,078 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.