The term "fluoridise" refers to the process of adding fluoride to water or other substances. However, there are several synonyms for this term that can be used interchangeably. One such synonym is "fluoridate," which means to add fluoride ions to a solution. Other synonyms include "flourish," "enrich," and "fortify." Each of these words describes the process of adding beneficial substances to a solution to improve its quality and promote health. No matter which synonym is used, the goal is to ensure that people have access to safe, clean water that promotes dental health and overall wellbeing.