1. [n]  self-indulgent sexual desire (personified as one of the deadly sins)
2. [n]  a strong sexual desire
3. [v]  have a craving, appetite, or great desire for

Lust
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1. \Lust\, n. [AS. lust, lust, pleasure, longing; akin to OS.,
   D., G., & Sw. lust, Dan. & Icel. lyst, Goth lustus, and perh.
   tom Skr. lush to desire, or to E. loose. Cf. {List} to
   please, {Listless}.]
   1. Pleasure. [Obs.] `` Lust and jollity.'' --Chaucer.
   2. Inclination; desire. [Obs.]
            For little lust had she to talk of aught. --Spenser.
            My lust to devotion is little.        --Bp. Hall.
   3. Longing desire; eagerness to possess or enjoy; -- in a had
      sense; as, the lust of gain.
            The lust of reigning. --Milton.
   4. Licentious craving; sexual appetite. --Milton.
   5. Hence: Virility; vigor; active power. [Obs.] --Bacon.
   

2. \Lust\, v. i. [imp. & p. p. {Lusted}; p. pr. & vb. n.
   {Lusting}.] [AS. lystan. See {Lust}, n., and cf. List to
   choose.]
   1. To list; to like. [Obs.] --Chaucer. `` Do so if thou lust.
      '' --Latimer.
   Note: In earlier usage lust was impersonal.
               In the water vessel he it cast When that him
               luste.                             --Chaucer.
   2. To have an eager, passionate, and especially an inordinate
      or sinful desire, as for the gratification of the sexual
      appetite or of covetousness; -- often with after.
            Whatsoever thy soul lusteth after.    --Deut. xii.
                                                  15.
            Whosoever looketh on a woman to lust after her, hath
            committed adultery with her already in his heart.
                                                  --Matt. v. 28.
            The spirit that dwelleth in us lusteth to envy.
                                                  --James iv. 5.
   

sinful longing; the inward sin which leads to the falling away from God (Rom. 1:21). "Lust, the origin of sin, has its place in the heart, not of necessity, but because it is the centre of all moral forces and impulses and of spiritual activity." In Mark 4:19 "lusts" are objects of desire.