herrvshierroTell them apart

Which to use

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

#43,051
“herr” frequency rank
#2,781
“hierro” frequency rank
45832
confusion score

Side-by-Side Comparison

Feature herr hierro
Definition Señor (tratamiento). Elemento químico con número atómico 26 cuyo símbolo es Fe. Pertenece al grupo de los metales de transición. Es un metal que se conoce desde la prehistoria y tiene propiedades ferromagnéticas (como imán).

Where the eye mixes herr and hierro

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. herr runs 4 letters (CVCC) against hierro's 6 (CVVCCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
herr
6 ch
hierro

Why the eye confuses herr with hierro

A purely visual mix-up. herr ([ˈhærː]) and hierro ([ˈjero]) 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 2 letter(s) in length. Our composite confusion score for this pair is 45832, derived from the frequency rank of both members and their visual similarity.

herr is recorded at frequency rank #43,051, classified as anoun, pronounced [ˈhærː]. hierro is at rank #2,781, tagged as anoun, pronounced [ˈjero].

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 45832, this pair ranks #129,199 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of herr vs hierro

Shared letters: ehr. Private to "herr": -. Private to "hierro": io.

"herr" · 4 letters · shape CVCC  ·  "hierro" · 6 letters · shape CVVCCV

Known mistypes of this pair

  • herr ← ehrr · hherr · hrer
  • hierro ← heirro · hhierro · hiero · hieror · hirero · iherro

Frequently Asked Questions

Can "herr" and "hierro" be used interchangeably?
No. They are said differently ([ˈhærː] versus [ˈjero]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "herr" vs "hierro" - which ranks higher?
"hierro" is the more common of the two: it sits at frequency rank #2,781 in our Spanish list, against #43,051 for "herr". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "herr" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "hierro" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #129,199 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "herr" and "hierro" also get mixed up with nearby pairs, the highest-scored neighbour is "heard vs herr". 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 #129,199 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