LEMvslxWhich spelling fits?

Which to use

“LEM” and “lx” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#35,810
“LEM” frequency rank
#34,169
“lx” frequency rank
69979
confusion score

Side-by-Side Comparison

Feature LEM lx
Definition Originally Lunar Excursion Module, latterly Lunar Module. Abbreviation of linguistics.

Letter map: LEM vs lx

Shared letters muted; letters that set LEM and lx apart highlighted. Shared run: 1.

3 ch
LEM
2 ch
lx

Corpus notes: LEM and lx

LEM and lx are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 69979, derived from the frequency rank of both members and their visual similarity.

LEM is recorded at frequency rank #35,810, classified as anoun. lx is at rank #34,169, tagged as anoun.

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 69979, this pair ranks #52,388 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of LEM vs lx

Shared letters: l. Private to "LEM": em. Private to "lx": x.

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

Frequently Asked Questions

Can "LEM" and "lx" be used interchangeably?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
In ordinary English text, does "LEM" or "lx" show up more?
"lx" is the more common of the two: it sits at frequency rank #34,169 in our English list, against #35,810 for "LEM". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "LEM" and "lx".

  • Full dictionary entry for "LEM" 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 #52,388 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "LEM" and "lx" also get mixed up with nearby pairs, the highest-scored neighbour is "LEM vs LSC". Nearby pair

Confusion rank #52,388 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list