orcavsorcosWhich spelling fits?

Which to use

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

#45,482
“orca” frequency rank
#29,769
“orcos” frequency rank
75251
confusion score

Side-by-Side Comparison

Feature orca orcos
Definition Mamífero marino carnívoro (Orcinus orca) perteneciente al orden Cetáceos (Cetacea) de unos unos diez metros de longitud, complexión robusta y aletas largas, de color azul muy oscuro, prácticamente negro, por la parte superior y blanco por la inferior. Puede encontrarse prácticamente en todos los océanos del mundo aunque con clara preferencia de las fértiles aguas frías como las polares. Forma del plural de orco.

Where the eye mixes orca and orcos

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
orca
5 ch
orcos

Visual trap between orca and orcos

A purely visual mix-up. orca ([ˈoɾka]) and orcos ([ˈoɾkos]) 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 75251, derived from the frequency rank of both members and their visual similarity.

orca is recorded at frequency rank #45,482, classified as anoun, pronounced [ˈoɾka]. orcos is at rank #29,769, tagged as anoun, pronounced [ˈoɾkos].

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 75251, this pair ranks #19,920 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of orca vs orcos

Shared letters: cor. Private to "orca": a. Private to "orcos": s.

"orca" · 4 letters · shape VCCV  ·  "orcos" · 5 letters · shape VCCVC

Known mistypes of this pair

  • orcaorac · orrca
  • orcosorccos · orcoss · orcso · orocs · orrcos · rocos

Frequently Asked Questions

Is swapping "orca" for "orcos" ever safe?
No. They are said differently ([ˈoɾka] versus [ˈoɾkos]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "orca" or "orcos"?
"orcos" is the more common of the two: it sits at frequency rank #29,769 in our Spanish list, against #45,482 for "orca". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "orca" and "orcos" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "orca" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "orcos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #19,920 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "orca" and "orcos" also get mixed up with nearby pairs, the highest-scored neighbour is "oirá vs orca". 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 #19,920 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