Ice  —n. 1 a frozen water. B sheet of this on water. 2 ice-cream or water-ice (ate an ice). —v. (icing) 1 mix with or cool in ice (iced drinks). 2 (often foll. By over, up) a cover or become covered with ice. B freeze. 3 cover (a cake etc.) With icing.  on ice 1 performed by skaters. 2 colloq. In reserve. On thin ice in a risky situation. [old english]