Which to use
“lack” and “luck” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #1,274
- “lack” frequency rank
- #1,312
- “luck” frequency rank
- 2586
- confusion score
Side-by-Side Comparison
| Feature | lack | luck |
|---|---|---|
| Definition | A deficiency or need (of something desirable or necessary); an absence, want, dearth. | Something that happens to someone by chance, a chance occurrence. |
Where the eye mixes lack and luck
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Spelling & Dictionary Insight
A purely visual mix-up. lack (/læk/) and luck (/lʌk/) 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 a single letter - a in “lack” becomes u in “luck”. Our composite confusion score for this pair is 2586, derived from the frequency rank of both members and their visual similarity.
lack is recorded at frequency rank #1,274, classified as anoun, pronounced /læk/. luck is at rank #1,312, tagged as anoun, pronounced /lʌk/.
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 2586, this pair ranks #524,593 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of lack vs luck
Shared letters: ckl. Private to "lack": a. Private to "luck": u.
"lack" · 4 letters · shape CVCC · "luck" · 4 letters · shape CVCC