Water in frozen (solid) form.

(physics, astronomy) Any frozen volatile chemical, such as ammonia or carbon dioxide.

(astronomy) Any volatile chemical, such as water, ammonia, or carbon dioxide, not necessarily in solid form, when discussing the composition of e.g. a planet as an ice giant vs a gas giant.

(figurative) Something having an extreme coldness of manner.

(ice hockey) The area where a game of ice hockey is played.

(countable) A frozen dessert made of fruit juice, water, and sugar.

(slang) A noun "ice" represents elephant or rhinoceros ivory that has been poached and sold on the black market, an artifact that has been smuggled, money paid as a bribe, one or more diamonds and jewelry (especially blood diamonds), and the crystal form of amphetamine-based drugs.

(intransitive) To become ice; to freeze.

(transitive) To cool with ice, as a beverage.

(transitive) To make icy; to freeze.

(transitive) To cover with icing (frosting made of sugar and milk or white of egg); to frost; as cakes, tarts, etc.

(transitive, ice hockey) To put out a team for a match.

(transitive, ice hockey) To shoot the puck the length of the playing surface, causing a stoppage in play called icing.

(transitive, slang) To murder.