Home-freezing is the process of freezing food items at home for long-term storage. There are several synonyms for home-freezing, which include freezing, cryogenic preservation, and cryopreservation. Freezing is the most commonly used synonym for home-freezing, as it refers to the process of lowering the temperature of food to preserve it for a longer time. Cryogenic preservation is the process of preserving food at an extremely low temperature, which is generally below -150°C. Cryopreservation is the process of freezing living cells for future use, and it is used extensively in medical research and biotechnology. No matter what synonym you prefer, home-freezing is a convenient way to preserve food and reduce waste in your household.