Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The act or an instance of calling back from one location or situation to the previous one.
  • noun A second or follow-up audition, especially as one of a set of such auditions for a role in a play.
  • noun A return telephone or radio call.
  • noun A recall of a recently sold product by the manufacturer to correct a defect.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The return of a situation to a previous position or state.
  • noun A return telephone or radio call; especially one made automatically to authenticate a logon to a computer network
  • noun A product recall because of a defect or safety concern.
  • noun computing, programming A function pointer passed to another function that the latter can call for notification purposes.
  • noun theater a follow-up audition (casting)
  • noun comedy a joke which references an earlier joke in the same routine

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

call +‎ back

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Examples

  • Your callback will be used within the main form, so you must not include any tags or a form submit button. register_widget_control ($name, $callback [, $width [, $height]]);

    Codex - Recent changes [en] 2010

  • Your callback will be used within the main form, so you must not include any tags or a form submit button. register_widget_control ($name, $callback [, $width [, $height]]);

    Codex - Recent changes [en] 2009

  • $callback - You assign the name of a JavaScript callback method to this parameter.

    ASP.NET Weblogs Latest Microsoft Blogs 2010

  • I think FilmDrunkard of the week must go to RoboPanda, for a series of gems, beginning with a Bruce Greenwood callback from the STRANGE WILDERNESS HAS A TRAILER thread: Did you know that:

    C.O.W: HETEROSEXUAL ASS PATS ALL AROUND 2007

  • I missed the first callback from the nurse callcentre practitioner.

    Show, don't tell amuchmoreexotic 2004

  • Didn't get a callback from the instemming, but again, doesn't matter.

    May 14th, 2004 2004

  • If it calls the callback with false, (or if it doesn't call it at all), the shutdown sequence will continue.

    Netvouz - new bookmarks 2009

  • After the add. php script successfully inserts the data into the database, it calls the callback function.

    Java Technology Headlines 2008

  • The faq. pygtk example isn’t likely to block because it doesn’t write () as your code snippet do, and only display 100 bytes (less than a single tcp packet, should be fully available in one shot when the read callback is triggered or soon after).

    Downloading Large Files Async With GIO | jonobacon@home 2010

  • Mr. Turkewitz declined to give us a straight answer on this score, so, pending callback from the White House, we’ve taken the itemdown.]

    The Volokh Conspiracy » How Did the White House Pick Its Law Blogger? 2010

Comments

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  • The last Wiktionary definition given above (“a joke which references an earlier joke in the same routine”) is a bit behind the times: I now see “callback” being used for references in all kinds of art forms.

    Case in point: Merriam-Webster doesn’t list “reference” or anything like it among its definitions (yet), but the word is used in exactly that way in the two (automatically selected) usage examples on https://www.merriam-webster.com/dictionary/callback today:

    “This hasn’t been Cox’s only callback to Friends on Instagram.” —Erica Gonzales, Harper’s Bazaar, “Courteney Cox Revisited Her Friends Apartment With a Perfect Instagram Tribute,” 21 Mar. 2019

    “Nostalgia is a clear selling point in this regard — the movie makes the most of its retro setting, with copious use of The Smiths, appearances from Mr. T cereal, and other 1980s pop-culture callbacks.” —Bryan Bishop, The Verge, “Bumblebee proves Transformers movies can actually be resonant and emotional,” 20 Dec. 2018

    April 11, 2019

  • Expansion of a definition to new situations doesn't necessarily invalidate older definitions.

    April 12, 2019

  • True! But that's not what I meant. My point was just that that particular definition has evolved and expanded.
    And the new definition still seems to be the dominant one, at least in the popular sources Webster's robots mine for examples:

    “Much like Hailey’s style, the packaging is minimal, with a slight callback to the early ’00s.

    Bella Cacciatore, Glamour, 15 June 2022


    This scene is more of a fun little callback to an earlier scene in the movie.

    Erik Kain, Forbes, 5 May 2022


    There’s even a callback to the pilot, with Dr. K’s lemon story now applying to Rebecca’s end of life.”

    Jackie Strause, The Hollywood Reporter, 17 May 2022

    June 29, 2022

  • practik is identifying a case of "semantic generalization" or broadening here. Dictionaries usually update with new or revised definitions of words that evolve this way, but rarely immediately

    July 1, 2022