Which to use
“lain” is a verb and “las” is a noun - they look or sound alike but fill different roles in a sentence.
- #34,154
- “lain” frequency rank
- #4,463
- “las” frequency rank
- 38617
- confusion score
Side-by-Side Comparison
| Feature | lain | las |
|---|---|---|
| Definition | past participle of lie (“to be oriented in a horizontal position, situated”) | plural of la |
Where the eye mixes lain and las
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses lain with las
These two trip readers on the page rather than in the ear: lain is /leɪn/ while las is /lɑːz/. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 38617, derived from the frequency rank of both members and their visual similarity.
lain is recorded at frequency rank #34,154, classified as averb, pronounced /leɪn/. las is at rank #4,463, tagged as anoun, pronounced /lɑːz/.
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 38617, this pair ranks #284,323 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of lain vs las
Shared letters: al. Private to "lain": in. Private to "las": s.
"lain" · 4 letters · shape CVVC · "las" · 3 letters · shape CVC
Known mistypes of this pair
- lain ← alin · lainn · lani · llain
Frequently Asked Questions
Is swapping "lain" for "las" ever safe?
Which is more common, "lain" or "las"?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "lain" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "las" - compare definitions side by side with the headword page. Word entry
- This pair ranks #284,323 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "lain" and "las" also get mixed up with nearby pairs, the highest-scored neighbour is "lain vs lav". 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 #284,323 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.