Dictionary.com
Thesaurus.com
Synonyms

orca

American  
[awr-kuh] / ˈɔr kə /

noun

  1. the killer whale, Orcinus orca.


orca British  
/ ˈɔːkə /

noun

  1. a killer whale

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of orca

First recorded in 1650–60; from New Latin, former taxonomic name, from Latin, a kind of whale, perhaps a grampus, from Greek óryga (accusative of óryx ), a kind of large fish, perhaps a narwhal. The g became c under the influence of Latin orca, a kind of large earthenware vessel with a narrow neck; orc

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Even so, the authors stress that much more research is required to understand the diversity of circoviruses in cetaceans, how they are transmitted, and what effects they may have on whale and orca health.

From Science Daily • Jan. 6, 2026

Keiko, the orca that starred in the 1993 move Free Willy, was rescued from captivity in 1996 before being taken to a bay in Iceland in 1998.

From BBC • Jan. 5, 2025

On Monday researchers observed a new young orca swimming with the J pod, which they named J62.

From Los Angeles Times • Jan. 5, 2025

I’ve written about sailors trading tips online over orca attacks and how savvy TikTok marketing revived a restaurant’s business.

From New York Times • Nov. 26, 2024

Cole spotted the glistening keel-like fins of an orca whale guiding her young calf along the shoreline in search of food.

From "Touching Spirit Bear" by Ben Mikaelsen