Ozonation refers to the process of using ozone gas to purify water or air. However, there are a number of other terms or phrases that can be used as synonyms for ozonation. For instance, the use of "ozone treatment" or "ozone disinfection" can be used interchangeably with ozonation. The term "ozone therapy" is also sometimes used to describe the use of ozone gas to kill harmful pathogens or purify air or water. Additionally, the term "ozonification" can be used to describe the conversion of a substance into ozone. Regardless of the terminology used, ozonation remains an important process for maintaining clean and safe air and water for human consumption.