lbf

L1B3F4

A form of pound-force — A unit of force equal to the weight, on earth (subject to standard gravity), of a mass of one avoirdupois pound, equal to about 4.44822 newtons. Symbol lbf or lb_f.

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Meanings

lbf1

noun
  1. abbreviationAbbreviation of pound-force (“unit of force”).
    1 more example

    The slug is defined as the mass which would accelerate at a rate of 1 ft/s² under a force of one pound-force (lbf). Since 1 lbf is the force exerted on a mass of one pound by a standard gravitational field (of exactly 9.80665 meters per square second), a slug is thus exactly equal to 196133/6096 pounds (about 32.1740485564 lb or 14.593902937206 kg).

    2000 October 9, Gérard P. Michon, “What is a slug, in the [engineering] weight measurement system?”, in Numericana.com

LBF2

proper noun
  1. abbreviationinitialismboxingInitialism of Luxembourg Boxing Federation.

Origin

See lb (“pound”).

Full word history & related roots →
Cite this entry
APA

lbf. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/lbf

MLA

“lbf.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/lbf. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “lbf,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/lbf.

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