Which to use
“lac” and “lux” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #48,497
- “lac” frequency rank
- #23,482
- “lux” frequency rank
- 71979
- confusion score
Side-by-Side Comparison
| Feature | lac | lux |
|---|---|---|
| Definition | Lago. | Unidad derivada del Sistema Internacional de Unidades para la iluminancia o nivel de iluminación, equivalente a un lumen por metro cuadrado. |
Where the spellings diverge
Shared letters are muted; the letters that actually set lac and lux apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
A purely visual mix-up. lac ([lak]) 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 71979, derived from the frequency rank of both members and their visual similarity.
lac is recorded at frequency rank #48,497, classified as anoun, pronounced [lak]. 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 71979, this pair ranks #26,342 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of lac vs lux
Shared letters: l. Private to "lac": ac. Private to "lux": ux.
"lac" · 3 letters · shape CVC · "lux" · 3 letters · shape CVC
Frequency comparison
Frequently Asked Questions
Can "lac" and "lux" be used interchangeably?
Which is more common, "lac" or "lux"?
Remembering lac vs lux
The fastest way to pick the right one every time.
- Read both glosses above and match the meaning you intend, only context separates this pair.
- See each word in full, definition, IPA, etymology and its other confusables. Full “lac” entry
- Browse more pairs most likely to be confused. Most confusable