orcavsorganWhat's the difference?

Which to use

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

#31,683
“orca” frequency rank
#5,719
“organ” frequency rank
37402
confusion score

Side-by-Side Comparison

Feature orca organ
Definition A sea mammal (Orcinus orca) related to dolphins and porpoises, commonly called the killer whale. The larger part of an organism, composed of tissues that perform similar functions.

Where the eye mixes orca and organ

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. orca runs 4 letters (VCCV) against organ's 5 (VCCVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
orca
5 ch
organ

Why the eye confuses orca with organ

A purely visual mix-up. orca (/ˈoɹkə/) and organ (/ˈɔːɡən/) 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 37402, derived from the frequency rank of both members and their visual similarity.

orca is recorded at frequency rank #31,683, classified as anoun, pronounced /ˈoɹkə/. organ is at rank #5,719, tagged as anoun, pronounced /ˈɔːɡən/.

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 37402, this pair ranks #294,865 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of orca vs organ

Shared letters: aor. Private to "orca": c. Private to "organ": gn.

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

Known mistypes of this pair

  • orca ← orac · orcca · orrca · roca
  • organ ← ogran · oragn · organn · orggan · orgna · orrgan

Frequently Asked Questions

Do "orca" and "organ" mean the same thing in a sentence?
No. They are said differently (/ˈoɹkə/ versus /ˈɔːɡən/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "orca" or "organ" show up more?
"organ" is the more common of the two: it sits at frequency rank #5,719 in our English list, against #31,683 for "orca". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "orca" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "organ" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #294,865 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "orca" and "organ" also get mixed up with nearby pairs, the highest-scored neighbour is "orca vs Ors". 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 #294,865 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list