Boiling is a common method of sterilization, which is the process of killing or removing all forms of life from an object or area. Boiling is a simple and effective way to STERILIZE items, as it involves heating the object or area to a temperature that is high enough to kill any living organisms. Boiling is often used to STERILIZE medical instruments, food, and water, as well as other items that need to be free of bacteria and other microorganisms.