The Collaborative International Dictionary of English v.0.48:

Chou \Chou\, n.; pl. Choux. [F., fr. L. caulis stalk.]
   1. A cabbage.
      [Webster 1913 Suppl.]

   2. A kind of light pastry, usually in the form of a small
      round cake, and with a filling, as of jelly or cream.
      [Webster 1913 Suppl.]

   3. A bunch, knot, or rosette of ribbon or other material,
      used as an ornament in women's dress.
      [Webster 1913 Suppl.]