Which to use
“loci” and “locum” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #37,545
- “loci” frequency rank
- #47,732
- “locum” frequency rank
- 85277
- confusion score
Side-by-Side Comparison
| Feature | loci | locum |
|---|---|---|
| Definition | plural of locus | Ellipsis of locum tenens. |
Where the eye mixes loci and locum
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. loci runs 4 letters (CVCV) against locum's 5 (CVCVC) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between loci and locum
A purely visual mix-up. loci (/ˈləʊsaɪ/) and locum (/ˈləʊkəm/) 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 1 letter(s) in length. Our composite confusion score for this pair is 85277, derived from the frequency rank of both members and their visual similarity.
loci is recorded at frequency rank #37,545, classified as anoun, pronounced /ˈləʊsaɪ/. locum is at rank #47,732, tagged as anoun, pronounced /ˈləʊkəm/.
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 85277, this pair ranks #10,645 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of loci vs locum
Shared letters: clo. Private to "loci": i. Private to "locum": mu.
"loci" · 4 letters · shape CVCV · "locum" · 5 letters · shape CVCVC
Known mistypes of this pair
Frequently Asked Questions
Do "loci" and "locum" mean the same thing in a sentence?
In ordinary English text, does "loci" or "locum" show up more?
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 "loci" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "locum" - compare definitions side by side with the headword page. Word entry
- This pair ranks #10,645 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "loci" and "locum" also get mixed up with nearby pairs, the highest-scored neighbour is "lockup vs locum". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #10,645 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.