KF

K5F4

A form of Kalman filter — An algorithm that uses a series of measurements observed over time, containing statistical noise and other inaccuracies, and produces estimates of unknown variables that tend to be more precise than those based on a single measurement alone. They are used in navigation, signal processing, etc.

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Meanings

nounKF (plural KFs)

plural KFs

  1. abbreviationinitialismmathematicsInitialism of Kalman filter.
  2. abbreviationinitialismmedicineInitialism of ketotifen fumarate.
  3. InternetabbreviationinitialismInitialism of kill file.
proper noun
  1. InternetabbreviationinitialismInitialism of Kiwi Farms.

    The idea that I'm responsible for her [Sorrenti's] thread being posted on KF [Kiwi Farms] is unbelievable to me.

    2022 October 12, Morgan Sung, quoting Steven Bonnell, “Trans Twitch streamer Keffals is ready to return home”, in NBC News, archived from the original on 16 May 2024
    3 more examples

    Everyone KF targets is “crazy” to them, and everything KFers find funny or worthy of disdain is justified as evidence of this perceived mental illness.

    2016 July 19, Margaret Pless, “Kiwi Farms, the Web’s Biggest Community of Stalkers”, in Intelligencer, New York, N.Y.: New York Media, →ISSN, →OCLC, archived from the original on 28 May 2024

    Cloudflare's position on KF is not tenable and I believe that their leadership, employees, shareholders and the rest of the world would be better off if they proactively recognized that.

    2022 September 3, Joseph Menn, Taylor Lorenz, quoting Alex Stamos, “Cloudflare drops KiwiFarms”, in The Washington Post, Washington, D.C.: The Washington Post Company, →ISSN, →OCLC, archived from the original on 08 May 2023

    But others are definitely not welcoming of Watkins' involvement. "Jim, as in Jim Watkins? If there's one surefire way to kill KF, it would be him taking over and running it into the ground lol," one user wrote.

    2022 September 16, David Gilbert, anonymous quotee, “QAnon Celebrity and 8kun Owner Jim Watkins Claims He Bought Kiwi Farms”, in VICE, archived from the original on 05 Mar 2024
verbKF (third-person singular simple present KFs or KF's, present participle KFing or KF'ing, simple past and past participle KFed or KF'd or KF'ed)

present singular third person KFs · present singular third person KF's · participle present KFing · participle present KF'ing · participle past KFed · past KFed · participle past KF'd · past KF'd · participle past KF'ed · past KF'ed

  1. InternetabbreviationinitialismtransitiveInitialism of kill file.

    Sorry Bernie, drawing this whole thing to a close & KF'ing you... spme of us (not you, clearly) have work in the morning.

    2006 December 6, Undefeated Usenet God (18&5), “Ping Bernie the imbalanced”, in uk.sport.football.clubs.liverpool (Usenet)
Cite this entry
APA

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

MLA

“KF.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/KF. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “KF,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/KF.

Source: KF on Wiktionary, CC BY-SA 4.0.