locivslooConfusable pair

Which to use

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

#37,545
“loci” frequency rank
#19,636
“loo” frequency rank
57181
confusion score

Side-by-Side Comparison

Feature loci loo
Definition plural of locus A lavatory: a room used for urination and defecation.

Where the eye mixes loci and loo

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
loci
3 ch
loo

Look-alike desk: loci vs loo

A purely visual mix-up. loci (/ˈləʊsaɪ/) and loo (/luː/) 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 57181, 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/. loo is at rank #19,636, tagged as anoun, pronounced /luː/.

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 57181, this pair ranks #121,055 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of loci vs loo

Shared letters: lo. Private to "loci": ci. Private to "loo": -.

"loci" · 4 letters · shape CVCV  ·  "loo" · 3 letters · shape CVV

Known mistypes of this pair

  • locilcoi · lloci · locci · loic · olci

Frequently Asked Questions

Can "loci" and "loo" be used interchangeably?
No. They are said differently (/ˈləʊsaɪ/ versus /luː/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "loci" or "loo"?
"loo" is the more common of the two: it sits at frequency rank #19,636 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 "loo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #121,055 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "loci" and "loo" 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 #121,055 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