lumvsluzWhat's the difference?

Which to use

“lum” and “luz” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#47,736
“lum” frequency rank
#27,908
“luz” frequency rank
75644
confusion score

Side-by-Side Comparison

Feature lum luz
Definition A chimney; also, the top part of a chimney. A small bone in the human spinal column, believed in Muslim and Jewish traditions to be the indestructible bone from which the body will be rebuilt at the time of resurrection.

Letter map: lum vs luz

Shared letters muted; letters that set lum and luz apart highlighted. Shared run: 2.

3 ch
lum
3 ch
luz

Spelling & Dictionary Insight

lum and luz 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 z in “luz”. Our composite confusion score for this pair is 75644, 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/. luz is at rank #27,908, 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 75644, this pair ranks #32,517 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of lum vs luz

Shared letters: lu. Private to "lum": m. Private to "luz": z.

"lum" · 3 letters · shape CVC  ·  "luz" · 3 letters · shape CVC

Frequently Asked Questions

Can "lum" and "luz" be used interchangeably?
No. They differ by a single letter - m in “lum” becomes z in “luz”, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Which is more common, "lum" or "luz"?
"luz" is the more common of the two: it sits at frequency rank #27,908 in our English list, against #47,736 for "lum". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list