heroínavsheroínasWhich spelling fits?

Which to use

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

#11,424
“heroína” frequency rank
#32,694
“heroínas” frequency rank
44118
confusion score

Side-by-Side Comparison

Feature heroína heroínas
Definition Alcaloide (droga) derivado del opio. Es estupefaciente y tóxico. Forma del plural de heroína.

Where the eye mixes heroína and heroínas

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. heroína runs 7 letters (CVCVVCV) against heroínas's 8 (CVCVVCVC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
heroína
8 ch
heroínas

Visual trap between heroína and heroínas

A purely visual mix-up. heroína ([eɾoˈina]) and heroínas ([eɾoˈinas]) 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 extra letter(s) - “heroína” sits inside “heroínas”. Our composite confusion score for this pair is 44118, derived from the frequency rank of both members and their visual similarity.

heroína is recorded at frequency rank #11,424, classified as anoun, pronounced [eɾoˈina]. heroínas is at rank #32,694, tagged as anoun, pronounced [eɾoˈinas].

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 44118, this pair ranks #138,818 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of heroína vs heroínas

Shared letters: aehnorí. Private to "heroína": -. Private to "heroínas": s.

"heroína" · 7 letters · shape CVCVVCV  ·  "heroínas" · 8 letters · shape CVCVVCVC

Frequently Asked Questions

Is swapping "heroína" for "heroínas" ever safe?
No. They are said differently ([eɾoˈina] versus [eɾoˈinas]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "heroína" or "heroínas" show up more?
"heroína" is the more common of the two: it sits at frequency rank #11,424 in our Spanish list, against #32,694 for "heroínas". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "heroína" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "heroínas" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #138,818 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "heroína" and "heroínas" also get mixed up with nearby pairs, the highest-scored neighbour is "heroicas vs heroínas". Nearby pair

Confusion rank #138,818 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