lacravslibraWhich spelling fits?

Which to use

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

#26,114
“lacra” frequency rank
#8,546
“libra” frequency rank
34660
confusion score

Side-by-Side Comparison

Feature lacra libra
Definition Secuela de una enfermedad. Medida de peso del sistema imperial anglosajón, equivalente a 0.45359237 kilogramos.

Where the eye mixes lacra and libra

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

5 ch
lacra
5 ch
libra

Visual trap between lacra and libra

A purely visual mix-up. lacra ([ˈlakɾa]) and libra ([ˈliβ̞ɾa]) 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 34660, 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]. libra is at rank #8,546, tagged as anoun, pronounced [ˈliβ̞ɾa].

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 34660, this pair ranks #190,263 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of lacra vs libra

Shared letters: alr. Private to "lacra": c. Private to "libra": bi.

"lacra" · 5 letters · shape CVCCV  ·  "libra" · 5 letters · shape CVCCV

Known mistypes of this pair

  • lacraalcra · lacar · laccra · lacrra · larca · llacra
  • librailbra · lbira · libar · libbra · librra · lirba · livra · llibra

Frequently Asked Questions

Can "lacra" and "libra" be used interchangeably?
No. They are said differently ([ˈlakɾa] versus [ˈliβ̞ɾa]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "lacra" or "libra"?
"libra" is the more common of the two: it sits at frequency rank #8,546 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

Eye-level mix-up between "lacra" and "libra" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "lacra" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "libra" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #190,263 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "lacra" and "libra" 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 #190,263 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