The Collaborative International Dictionary of English v.0.48:

Chass'e \Chas`s['e]"\ (sh[.a]s`s[asl]"), n. [F., fr. chass['e],
   p. p. of chasser to chase.]
   1. A movement in dancing, as across or to the right or left.
      [1913 Webster]

   2. A gliding step in dancing in which one foot is kept in
      front of the other while moving.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

Chass'e \Chas`s['e]"\, v. i. (Dancing)
   To make the movement called chass['e]; as, all chass['e];
   chass['e] to the right or left.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Chasse \Chasse\ (sh[.a]s), n. [See Chasse-caf['e]]
   A small potion of spirituous liquor taken to remove the taste
   of coffee, tobacco, or the like; -- originally
   chasse-caf['e], lit., "coffee chaser."
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

chasse
    n 1: (ballet) quick gliding steps with one foot always leading
         [syn: chasse, sashay]
    v 1: perform a chasse step, in ballet [syn: chasse, sashay]