kill off

kill·off
UK/kɪl ɒf/US/kɪl ɔf/US/kɪl ɑf/

verb

To eliminate, to make extinct.

“We killed off the Dodo by over-hunting.”

Meanings

verbkill off (third-person singular simple present kills off, present participle killing off, simple past and past participle killed off)

present singular third person kills off · participle present killing off · participle past killed off · past killed off

  1. transitiveTo eliminate, to make extinct.

    We killed off the Dodo by over-hunting.

  2. broadcastingOf writers or producers, to permanently take a character out of a television series or other work by purposefully and deliberately having them killed within the plot.

    The writers are killing off lots of people in the soap opera.

    1 more example

    Bridget Jones’s creator Helen Fielding didn’t seem to know what to do with her once she’d married her Mr Darcy, and ended up killing him off to make Bridget interesting again.

    2025 August 28, Gaby Hinsliff, “Taylor Swift: engaged, mummy-tracked and doomed to tradwifedom? You really haven’t been listening”, in The Guardian, →ISSN
  3. figurativelytransitiveTo put an end to.

    There are many ways to kill off projects, and the Department for Transport is proving particularly adept at finding new ones.

    2019 November 20, Christian Wolmar, “DfT places fresh hurdles in the path of Heathrow link”, in Rail, page 52
    3 more examples

    (Jason) The only thing I had handy to send them was this one dinky little program I'd written for fun. (Mom) And it killed off interest? (Jason) Actually, it killed off the Internet.

    1999 January 16, Bill Amend, FoxTrot

    Marouane Chamakh then spurned a great chance to kill the game off when he ran onto Andrey Arshavin's lofted through ball but shanked his shot horribly across the face of goal.

    2011 September 28, Tom Rostance, “Arsenal 2 - 1 Olympiakos”, in BBC Sport

    The moment is reminiscent of other bet-the-company gambles, such as when Netflix killed off its DVD-mailing business last decade to focus on streaming.

    2022 July 26, Mike Isaac, “‘Operating With Increased Intensity’: Zuckerberg Leads Meta Into Next Phase”, in The New York Times, →ISSN

Synonyms & antonyms

verbkill en masse; kill on a large scale; kill many

Broader
Also see

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

Cite this entry
APA

kill off. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/kill%20off

MLA

“kill off.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/kill%20off. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “kill off,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/kill%20off.

Source: kill off on Wiktionary, CC BY-SA 4.0.