Which to use
“lest” is a noun and “lus” is an adjective - they look or sound alike but fill different roles in a sentence.
- #27,865
- “lest” frequency rank
- #12,613
- “lus” frequency rank
- 40478
- confusion score
Side-by-Side Comparison
| Feature | lest | lus |
|---|---|---|
| Definition | Pierres, sable ou autres matières pesantes dont on charge le fond d’un bateau pour lui donner la stabilité convenable, en le faisant suffisamment entrer dans l’eau. | Masculin pluriel de lu. |
Where the eye mixes lest and lus
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses lest with lus
These two trip readers on the page rather than in the ear: lest is \lɛst\ while lus is \ly\. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 40478, derived from the frequency rank of both members and their visual similarity.
lest is recorded at frequency rank #27,865, classified as anoun, pronounced \lɛst\. lus is at rank #12,613, tagged as anadj, pronounced \ly\.
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 40478, this pair ranks #240,174 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of lest vs lus
Shared letters: ls. Private to "lest": et. Private to "lus": u.
"lest" · 4 letters · shape CVCC · "lus" · 3 letters · shape CVC
Known mistypes of this pair
- lest ← elst · lesst · lestt · lets · llest · lset
Frequently Asked Questions
Is swapping "lest" for "lus" ever safe?
Which is more common, "lest" or "lus"?
What to do next
Eye-level mix-up between "lest" and "lus" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "lest" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "lus" - compare definitions side by side with the headword page. Word entry
- This pair ranks #240,174 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "lest" and "lus" also get mixed up with nearby pairs, the highest-scored neighbour is "lep vs lest". 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 #240,174 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.