LaservslerConfusable pair

Which to use

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

#7,721
“Laser” frequency rank
#41,868
“ler” frequency rank
49589
confusion score

Side-by-Side Comparison

Feature Laser ler
Definition Laser. Source de rayonnement électromagnétique (lumière, infrarouge, ultraviolet, etc.) basée sur l’émission stimulée. Pin.

Letter map: Laser vs ler

Shared letters muted; letters that set Laser and ler apart highlighted. Shared run: 3.

5 ch
Laser
3 ch
ler

Spelling & dictionary notes on Laser vs ler

Laser and ler are indexed as a confusable French 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 2 letter(s) in length. Our composite confusion score for this pair is 49589, derived from the frequency rank of both members and their visual similarity.

Laser is recorded at frequency rank #7,721, classified as anoun, pronounced \ˈlɛɪ̯zɐ\. ler is at rank #41,868, 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 49589, this pair ranks #169,410 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Laser vs ler

Shared letters: elr. Private to "Laser": as. Private to "ler": -.

"Laser" · 5 letters · shape CVCVC  ·  "ler" · 3 letters · shape CVC

Known mistypes of this pair

  • Laseralser · laesr · laserr · lasre · llaser · lsaer

Frequently Asked Questions

Is swapping "Laser" for "ler" ever safe?
No. They differ by 2 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "Laser" vs "ler" - which ranks higher?
"Laser" is the more common of the two: it sits at frequency rank #7,721 in our French list, against #41,868 for "ler". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "Laser" vs "ler" is on the table, pick a follow-up below.

  • Full dictionary entry for "Laser" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ler" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #169,410 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "Laser" and "ler" also get mixed up with nearby pairs, the highest-scored neighbour is "lep vs ler". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #169,410 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