hierbavshierbasTell them apart

Which to use

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

#7,172
“hierba” frequency rank
#9,995
“hierbas” frequency rank
17167
confusion score

Side-by-Side Comparison

Feature hierba hierbas
Definition Planta cuyo tallo, raíz y ramaje no presentan lignificación, es decir, carecen de las estructuras leñosas típicas de la madera en árboles y arbustos. La estructura herbácea es independiente de la duración del ciclo de vida de la planta; muchas hierbas son vivaces, perdiendo las partes tiernas en invierno pero brotando nuevamente a partir de un bulbo o rizoma todos los años, mientras que otras son perennes. Forma del plural de hierba.

Where the eye mixes hierba and hierbas

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. hierba runs 6 letters (CVVCCV) against hierbas's 7 (CVVCCVC) - the length gap alone is often enough to separate them once you know to check it.

6 ch
hierba
7 ch
hierbas

Why the eye confuses hierba with hierbas

A purely visual mix-up. hierba ([ˈjeɾβ̞a]) and hierbas ([ˈjeɾβ̞as]) 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) - “hierba” sits inside “hierbas”. Our composite confusion score for this pair is 17167, derived from the frequency rank of both members and their visual similarity.

hierba is recorded at frequency rank #7,172, classified as anoun, pronounced [ˈjeɾβ̞a]. hierbas is at rank #9,995, tagged as anoun, pronounced [ˈjeɾβ̞as].

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 17167, this pair ranks #273,290 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of hierba vs hierbas

Shared letters: abehir. Private to "hierba": -. Private to "hierbas": s.

"hierba" · 6 letters · shape CVVCCV  ·  "hierbas" · 7 letters · shape CVVCCVC

Known mistypes of this pair

  • hierba ← heirba · hhierba · hiebra · hierab · hierbba · hierrba · hireba · iherba
  • hierbas ← heirbas · hhierbas · hiebras · hierabs · hierbass · hierbbas · hierbsa · hierrbas

Frequently Asked Questions

Do "hierba" and "hierbas" mean the same thing in a sentence?
No. They are said differently ([ˈjeɾβ̞a] versus [ˈjeɾβ̞as]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "hierba" or "hierbas" show up more?
"hierba" is the more common of the two: it sits at frequency rank #7,172 in our Spanish list, against #9,995 for "hierbas". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "hierba" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "hierbas" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #273,290 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "hierba" and "hierbas" also get mixed up with nearby pairs, the highest-scored neighbour is "hierbas vs hierva". 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 #273,290 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