Which to use
“legal” and “lethal” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #878
- “legal” frequency rank
- #8,813
- “lethal” frequency rank
- 9691
- confusion score
Side-by-Side Comparison
| Feature | legal | lethal |
|---|---|---|
| Definition | Relating to the law or to lawyers. | Of, pertaining to, or causing death; deadly; mortal; fatal. |
Where the eye mixes legal and lethal
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. legal runs 5 letters (CVCVC) against lethal's 6 (CVCCVC) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between legal and lethal
A purely visual mix-up. legal (/ˈliː.ɡəl/) and lethal (/ˈliː.θəl/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 9691, derived from the frequency rank of both members and their visual similarity.
legal is recorded at frequency rank #878, classified as anadj, pronounced /ˈliː.ɡəl/. lethal is at rank #8,813, tagged as anadj, pronounced /ˈliː.θəl/.
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 9691, this pair ranks #496,112 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of legal vs lethal
Shared letters: ael. Private to "legal": g. Private to "lethal": ht.
"legal" · 5 letters · shape CVCVC · "lethal" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Can "legal" and "lethal" be used interchangeably?
Which is more common, "legal" or "lethal"?
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 "legal" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "lethal" - compare definitions side by side with the headword page. Word entry
- This pair ranks #496,112 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "legal" and "lethal" also get mixed up with nearby pairs, the highest-scored neighbour is "legal vs lel". 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 #496,112 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.