Source : Webster's Revised Unabridged Dictionary (1913)

Lilt \Lilt\ (l[i^]lt), v. i. [Cf. Norw. lilla, lirla, to sing in
   a high tone.]
   1. To do anything with animation and quickness, as to skip,
      fly, or hop. [Prov. Eng.] --Wordsworth.

   2. To sing cheerfully. [Scot.]

Lilt \Lilt\, v. t.
   To utter with spirit, animation, or gayety; to sing with
   spirit and liveliness.

         A classic lecture, rich in sentiment, With scraps of
         thundrous epic lilted out By violet-hooded doctors.
                                                  --Tennyson.

Lilt \Lilt\, n.
   1. Animated, brisk motion; spirited rhythm; sprightliness.

            The movement, the lilt, and the subtle charm of the
            verse.                                --F. Harrison.

   2. A lively song or dance; a cheerful tune.

            The housewife went about her work, or spun at her
            wheel, with a lilt upon her lips.     --J. C.
                                                  Shairp.

Source : WordNet®

lilt
     n : a jaunty rhythm in music [syn: {swing}]
     v : articulate in a very careful and rhythmic way