hierbavshierenWhat's the difference?

Quick tell: hierba is a noun, hieren is a verb, so they fill different roles in a sentence.

Which to use

“hierba” is a noun and “hieren” is a verb - they look or sound alike but fill different roles in a sentence.

#7,172
“hierba” frequency rank
#35,072
“hieren” frequency rank
42244
confusion score

Side-by-Side Comparison

Feature hierba hieren
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. Tercera persona del plural (ellos, ellas; ustedes, 2.ª persona) del presente de indicativo de herir.

Where the eye mixes hierba and hieren

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. hierba (CVVCCV) and hieren (CVVCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

6 ch
hierba
6 ch
hieren

Visual trap between hierba and hieren

These two trip readers on the page rather than in the ear: hierba is [ˈjeɾβ̞a] while hieren is [ˈjeɾẽn]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 42244, 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]. hieren is at rank #35,072, tagged as averb, pronounced [ˈjeɾẽn].

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 42244, this pair ranks #149,321 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of hierba vs hieren

Shared letters: ehir. Private to "hierba": ab. Private to "hieren": n.

"hierba" · 6 letters · shape CVVCCV  ·  "hieren" · 6 letters · shape CVVCVC

Known mistypes of this pair

  • hierba ← heirba · hhierba · hiebra · hierab · hierbba · hierrba · hireba · iherba
  • hieren ← heiren · hhieren · hieern · hierenn · hierne · hierren · hireen · iheren

Frequently Asked Questions

Do "hierba" and "hieren" mean the same thing in a sentence?
No - they are not even the same part of speech. "hierba" is a noun and "hieren" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "hierba" or "hieren" show up more?
"hierba" is the more common of the two: it sits at frequency rank #7,172 in our Spanish list, against #35,072 for "hieren". 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 "hierba" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "hieren" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #149,321 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "hierba" and "hieren" also get mixed up with nearby pairs, the highest-scored neighbour is "hieren 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 #149,321 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