Clear ice is a term used to describe ice that is free from impurities or air bubbles, resulting in a crystal-clear appearance. There are several synonyms for clear ice, including pure ice, transparent ice, crystalline ice, and glassy ice. Pure ice is similar to clear ice in that it is also pure and free from impurities. Transparent ice refers to ice that is clear and allows light to pass through it. Crystalline ice is used to describe ice that has a distinct crystal pattern. Glassy ice, on the other hand, is smooth and clear but tends to shatter easily. Regardless of the synonym used, clear ice is highly sought after in the world of cocktails and fine dining.