Which to use
“lop” is a verb and “lum” is a noun - they look or sound alike but fill different roles in a sentence.
- #41,741
- “lop” frequency rank
- #47,736
- “lum” frequency rank
- 89477
- confusion score
Side-by-Side Comparison
| Feature | lop | lum |
|---|---|---|
| Definition | To cut off as the top or extreme part of anything, especially to prune a small limb off a shrub or tree, or sometimes to behead someone. | A chimney; also, the top part of a chimney. |
Where the eye mixes lop and lum
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. lop and lum follow the identical consonant-vowel pattern (CVC). Same shape at a glance is often the real trap, independent of shared letters.
Look-alike desk: lop vs lum
These two trip readers on the page rather than in the ear: lop is /lɒp/ while lum is /lʌm/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 89477, derived from the frequency rank of both members and their visual similarity.
lop is recorded at frequency rank #41,741, classified as averb, pronounced /lɒp/. lum is at rank #47,736, tagged as anoun, pronounced /lʌm/.
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 89477, this pair ranks #5,151 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of lop vs lum
Shared letters: l. Private to "lop": op. Private to "lum": mu.
"lop" · 3 letters · shape CVC · "lum" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "lop" for "lum" ever safe?
Frequency check: "lop" vs "lum" - which ranks higher?
What to do next
Eye-level mix-up between "lop" and "lum" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "lop" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "lum" - compare definitions side by side with the headword page. Word entry
- This pair ranks #5,151 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "lop" and "lum" also get mixed up with nearby pairs, the highest-scored neighbour is "LSC vs lum". Nearby pair
Confusion rank #5,151 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.