LEDvslxWhich spelling fits?

Quick tell: LED is a abbrev, lx is an article, so they fill different roles in a sentence.

Which to use

“LED” is an abbrev and “lx” is an article - they look or sound alike but fill different roles in a sentence.

#12,851
“LED” frequency rank
#39,325
“lx” frequency rank
52176
confusion score

Side-by-Side Comparison

Feature LED lx
Definition Dispositivo semiconductor (diodo) que emite luz policromática, es decir, con diferentes longitudes de onda, cuando se polariza en directa y es atravesado por la corriente eléctrica. El color depende del material semiconductor empleado en la construcción del diodo, pudiendo variar desde el ultravioleta, pasando por el espectro de luz visible, hasta el infrarrojo. Artículo determinado neutro singular.

Where the eye mixes LED and lx

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

3 ch
LED
2 ch
lx

Visual trap between LED and lx

These two trip readers on the page rather than in the ear: LED is [ˈleð̞] while lx is [el]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (abbrev vs article), which is usually the fastest check. Our composite confusion score for this pair is 52176, derived from the frequency rank of both members and their visual similarity.

LED is recorded at frequency rank #12,851, classified as anabbrev, pronounced [ˈleð̞]. lx is at rank #39,325, tagged as anarticle, pronounced [el].

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 52176, this pair ranks #94,019 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of LED vs lx

Shared letters: l. Private to "LED": de. Private to "lx": x.

"LED" · 3 letters · shape CVC  ·  "lx" · 2 letters · shape CC

Frequently Asked Questions

Can "LED" and "lx" be used interchangeably?
No - they are not even the same part of speech. "LED" is an abbrev and "lx" an article, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "LED" or "lx" show up more?
"LED" is the more common of the two: it sits at frequency rank #12,851 in our Spanish list, against #39,325 for "lx". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "LED" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "lx" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #94,019 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "LED" and "lx" also get mixed up with nearby pairs, the highest-scored neighbour is "lac vs lx". Nearby pair

Confusion rank #94,019 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list