Which to use
“lum” and “lun” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #47,736
- “lum” frequency rank
- #43,244
- “lun” frequency rank
- 90980
- confusion score
Side-by-Side Comparison
| Feature | lum | lun |
|---|---|---|
| Definition | A chimney; also, the top part of a chimney. | Alternative form of lown. |
Letter map: lum vs lun
Shared letters muted; letters that set lum and lun apart highlighted. Shared run: 2. lum and lun follow the identical consonant-vowel pattern (CVC). Same shape at a glance is often the real trap, independent of shared letters.
Pair insight - lum / lun
lum and lun are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by a single letter - m in “lum” becomes n in “lun”. Our composite confusion score for this pair is 90980, derived from the frequency rank of both members and their visual similarity.
lum is recorded at frequency rank #47,736, classified as anoun, pronounced /lʌm/. lun is at rank #43,244, tagged as anoun.
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 90980, this pair ranks #3,690 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of lum vs lun
Shared letters: lu. Private to "lum": m. Private to "lun": n.
"lum" · 3 letters · shape CVC · "lun" · 3 letters · shape CVC
Frequently Asked Questions
Do "lum" and "lun" mean the same thing in a sentence?
Frequency check: "lum" vs "lun" - which ranks higher?
After this comparison
Pair "lum" vs "lun" is on the table, pick a follow-up below.
- Full dictionary entry for "lum" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "lun" - compare definitions side by side with the headword page. Word entry
- This pair ranks #3,690 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "lum" and "lun" also get mixed up with nearby pairs, the highest-scored neighbour is "LSC vs lum". Nearby pair
Confusion rank #3,690 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.