obreravsorejaWhich spelling fits?

Which to use

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

#9,164
“obrera” frequency rank
#7,332
“oreja” frequency rank
16496
confusion score

Side-by-Side Comparison

Feature obrera oreja
Definition Hembra estéril en numerosas especies de insectos eusociales, que desempeña tareas de recolección, defensa y construcción. Estructura cartilaginosa (compuesta de piel y cartílago) que forma la parte externa del oído del hombre y algunos animales.

Where the eye mixes obrera and oreja

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
obrera
5 ch
oreja

Visual trap between obrera and oreja

A purely visual mix-up. obrera ([oˈβ̞ɾeɾa]) and oreja ([oˈɾexa]) 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 letter(s) in length. Our composite confusion score for this pair is 16496, derived from the frequency rank of both members and their visual similarity.

obrera is recorded at frequency rank #9,164, classified as anoun, pronounced [oˈβ̞ɾeɾa]. oreja is at rank #7,332, tagged as anoun, pronounced [oˈɾexa].

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 16496, this pair ranks #275,929 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of obrera vs oreja

Shared letters: aeor. Private to "obrera": b. Private to "oreja": j.

"obrera" · 6 letters · shape VCCVCV  ·  "oreja" · 5 letters · shape VCVCV

Known mistypes of this pair

  • obreraborera · obbrera · oberra · obrear · obrerra · obrrea · obrrera · orbera
  • orejaoerja · oreaj · orejja · orjea · orreja · roeja

Frequently Asked Questions

Can "obrera" and "oreja" be used interchangeably?
No. They are said differently ([oˈβ̞ɾeɾa] versus [oˈɾexa]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "obrera" or "oreja" show up more?
"oreja" is the more common of the two: it sits at frequency rank #7,332 in our Spanish list, against #9,164 for "obrera". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "obrera" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "oreja" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #275,929 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "obrera" and "oreja" also get mixed up with nearby pairs, the highest-scored neighbour is "obesa vs obrera". 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 #275,929 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