Source : Webster's Revised Unabridged Dictionary (1913)

Snuggle \Snug"gle\, v. t. [imp. & p. p. {Snuggled}; p. pr. & vb.
   n. {Snuggling}.] [Freq. of snug.]
   To move one way and the other so as to get a close place; to
   lie close for comfort; to cuddle; to nestle.

Source : WordNet®

snuggle
     n : a close and affectionate (and often prolonged) embrace [syn:
          {cuddle}, {nestle}]
     v 1: move or arrange oneself in a comfortable and cozy position;
          "We cuddled against each other to keep warm"; "The
          children snuggled into their sleeping bags" [syn: {cuddle},
           {nestle}, {nest}, {nuzzle}, {draw close}]
     2: position comfortably; "The baby nestled her head in her
        mother's elbow" [syn: {nestle}]