lacravslucaWhich spelling fits?

Which to use

“lacra” and “luca” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#26,114
“lacra” frequency rank
#13,282
“luca” frequency rank
39396
confusion score

Side-by-Side Comparison

Feature lacra luca
Definition Secuela de una enfermedad. Millar, conjunto de mil unidades.

Where the eye mixes lacra and luca

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

5 ch
lacra
4 ch
luca

Look-alike desk: lacra vs luca

A purely visual mix-up. lacra ([ˈlakɾa]) and luca ([ˈluka]) 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 39396, derived from the frequency rank of both members and their visual similarity.

lacra is recorded at frequency rank #26,114, classified as anoun, pronounced [ˈlakɾa]. luca is at rank #13,282, tagged as anoun, pronounced [ˈluka].

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 39396, this pair ranks #164,711 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of lacra vs luca

Shared letters: acl. Private to "lacra": r. Private to "luca": u.

"lacra" · 5 letters · shape CVCCV  ·  "luca" · 4 letters · shape CVCV

Known mistypes of this pair

  • lacraalcra · lacar · laccra · lacrra · larca · llacra
  • lucalcua · lluca · luac · lucca · ulca

Frequently Asked Questions

Do "lacra" and "luca" mean the same thing in a sentence?
No. They are said differently ([ˈlakɾa] versus [ˈluka]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "lacra" vs "luca" - which ranks higher?
"luca" is the more common of the two: it sits at frequency rank #13,282 in our Spanish list, against #26,114 for "lacra". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "lacra" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "luca" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #164,711 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "lacra" and "luca" also get mixed up with nearby pairs, the highest-scored neighbour is "lacra vs Lyra". 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 #164,711 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list