loxvslumTell them apart

Which to use

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

#44,312
“lox” frequency rank
#47,736
“lum” frequency rank
92048
confusion score

Side-by-Side Comparison

Feature lox lum
Definition Salmon that is cured in brine and then smoked at a low temperature so that the flesh remains uncooked. A chimney; also, the top part of a chimney.

Where the eye mixes lox and lum

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. lox and lum follow the identical consonant-vowel pattern (CVC). Same shape at a glance is often the real trap, independent of shared letters.

3 ch
lox
3 ch
lum

Look-alike desk: lox vs lum

A purely visual mix-up. lox (/lɒks/) and lum (/lʌm/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 92048, derived from the frequency rank of both members and their visual similarity.

lox is recorded at frequency rank #44,312, classified as anoun, pronounced /lɒks/. 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 92048, this pair ranks #2,900 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of lox vs lum

Shared letters: l. Private to "lox": ox. Private to "lum": mu.

"lox" · 3 letters · shape CVC  ·  "lum" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "lox" for "lum" ever safe?
No. They are said differently (/lɒks/ versus /lʌm/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "lox" or "lum" show up more?
"lox" is the more common of the two: it sits at frequency rank #44,312 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.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "lox" 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 #2,900 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "lox" and "lum" also get mixed up with nearby pairs, the highest-scored neighbour is "LSC vs lum". Nearby pair

Confusion rank #2,900 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list