férreavsférreasWhich spelling fits?

Which to use

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

#19,416
“férrea” frequency rank
#36,059
“férreas” frequency rank
55475
confusion score

Side-by-Side Comparison

Feature férrea férreas
Definition Forma del femenino de férreo. Forma del femenino plural de férreo.

Where the eye mixes férrea and férreas

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

6 ch
férrea
7 ch
férreas

Look-alike desk: férrea vs férreas

A purely visual mix-up. férrea ([ˈferea]) and férreas ([ˈfereas]) 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) - “férrea” sits inside “férreas”. Our composite confusion score for this pair is 55475, derived from the frequency rank of both members and their visual similarity.

férrea is recorded at frequency rank #19,416, classified as anadj, pronounced [ˈferea]. férreas is at rank #36,059, tagged as anadj, pronounced [ˈfereas].

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 55475, this pair ranks #78,710 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of férrea vs férreas

Shared letters: aefré. Private to "férrea": -. Private to "férreas": s.

"férrea" · 6 letters · shape CVCCVV  ·  "férreas" · 7 letters · shape CVCCVVC

Frequently Asked Questions

Can "férrea" and "férreas" be used interchangeably?
No. They are said differently ([ˈferea] versus [ˈfereas]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "férrea" or "férreas"?
"férrea" is the more common of the two: it sits at frequency rank #19,416 in our Spanish list, against #36,059 for "férreas". 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 "férrea" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "férreas" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #78,710 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "férrea" and "férreas" also get mixed up with nearby pairs, the highest-scored neighbour is "férreas vs Ferreras". Nearby pair

Confusion rank #78,710 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