locivslocksConfusable pair

Which to use

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

#37,545
“loci” frequency rank
#7,810
“locks” frequency rank
45355
confusion score

Side-by-Side Comparison

Feature loci locks
Definition plural of locus plural of lock

Where the eye mixes loci and locks

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
loci
5 ch
locks

Why the eye confuses loci with locks

A purely visual mix-up. loci (/ˈləʊsaɪ/) and locks (/lɒks/) 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 45355, 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/. locks is at rank #7,810, tagged as anoun, pronounced /lɒks/.

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 45355, this pair ranks #222,024 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of loci vs locks

Shared letters: clo. Private to "loci": i. Private to "locks": ks.

"loci" · 4 letters · shape CVCV  ·  "locks" · 5 letters · shape CVCCC

Known mistypes of this pair

  • locilcoi · lloci · locci · loic · olci
  • lockslcoks · llocks · loccks · lockks · lockss · locsk · lokcs · olcks

Frequently Asked Questions

Do "loci" and "locks" mean the same thing in a sentence?
No. They are said differently (/ˈləʊsaɪ/ versus /lɒks/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "loci" vs "locks" - which ranks higher?
"locks" is the more common of the two: it sits at frequency rank #7,810 in our English list, against #37,545 for "loci". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "loci" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "locks" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #222,024 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "loci" and "locks" also get mixed up with nearby pairs, the highest-scored neighbour is "loci vs LSC". 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 #222,024 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