"Freeze" refers to the process of lowering the temperature of a substance to the point where its molecules slow down significantly, often resulting in a solid state. This can occur in various materials, including water, which turns into ice at 0 degrees Celsius (32 degrees Fahrenheit). Freezing is commonly used in food preservation, as it helps to inhibit the growth of bacteria and other microorganisms. In a broader context, "freeze" can also describe a temporary halt in activity or movement. For example, in computer systems, a program may "freeze" when it becomes unresponsive, requiring a restart. This term is also used in sports, such as when a referee calls for a "freeze" to stop play for a review or penalty.