Refrigerate is a term used to describe the process of cooling or preserving food and other items. Freezing, which is done by reducing the temperature to below 0°C, is one way to refrigerate. Preserving is another way to refrigerate, which involves keeping food for a longer period of time by using methods such as canning, pickling, or drying. Cooling is a less extreme form of refrigeration, which involves reducing the temperature to just below room temperature. Chilling is similar to cooling, but it involves reducing the temperature to a slightly lower level. Lastly, icing is a form of refrigeration that involves freezing a liquid or solid to create a cold substance.