Normal refrigeration is a term used to describe the process of cooling and preserving food items in an appliance such as a refrigerator. However, there are other synonyms that can be used to describe this process. For example, cooling and chilling are two synonyms that can be used interchangeably with normal refrigeration. Preservation is another term that can be used to refer to the process of keeping food fresh and safe for consumption. Additionally, storage and refrigeration are two related terms that can also be used to describe the process of normal refrigeration. Ultimately, the goal of normal refrigeration and all its synonyms is to ensure that food stays fresh and healthy for consumption.