Which to use
“left” is an adjective and “lei” is a noun - they look or sound alike but fill different roles in a sentence.
- #215
- “left” frequency rank
- #23,328
- “lei” frequency rank
- 23543
- confusion score
Side-by-Side Comparison
| Feature | left | lei |
|---|---|---|
| Definition | Designating the side of the body toward the west when one is facing north; the side of the body on which the heart is located in most humans; the opposite of right. This arrow points to the reader's left: ← | A garland of flowers in Hawaii. |
Where the eye mixes left and lei
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses left with lei
These two trip readers on the page rather than in the ear: left is /ˈlɛft/ while lei is /leɪ/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 23543, derived from the frequency rank of both members and their visual similarity.
left is recorded at frequency rank #215, classified as anadj, pronounced /ˈlɛft/. lei is at rank #23,328, tagged as anoun, pronounced /leɪ/.
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 23543, this pair ranks #408,546 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of left vs lei
Shared letters: el. Private to "left": ft. Private to "lei": i.
"left" · 4 letters · shape CVCC · "lei" · 3 letters · shape CVV
Known mistypes of this pair
- left ← elft · lefft · leftt · letf · lfet · lleft
Frequently Asked Questions
Do "left" and "lei" mean the same thing in a sentence?
In ordinary English text, does "left" or "lei" show up more?
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 "left" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "lei" - compare definitions side by side with the headword page. Word entry
- This pair ranks #408,546 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "left" and "lei" also get mixed up with nearby pairs, the highest-scored neighbour is "lei vs LSC". 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 #408,546 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.