There are plenty of synonyms available to define the term 'boarding school'. For instance, one can use 'prep school', 'college preparatory school', or 'residential school'. Similarly, schools that follow British education systems often use the phrase 'public schools', which can be a synonym for 'boarding schools'. In the same vein, 'academy' and 'institute' can also be used as synonyms for boarding school. Additionally, a 'military school' is a type of boarding school that distinguishes itself through comprehensive physical discipline and stringent rules and regulations. Ultimately, whichever synonym one chooses, the term "boarding school" refers to a residential school where students live and study during the academic term.