There are various synonyms for the term "school-leaver," which usually refers to a student who has completed their final year of high school or secondary education. One commonly used synonym is "graduate," which implies that the individual has received a diploma or degree. Another synonym could be "alumnus" or "alumna," which refers to a former student of a school or university. Other phrases that are similar to "school-leaver" include "graduating senior," "school graduate," or simply "graduate-to-be". While the term "school-leaver" is commonly used in the UK, these alternatives can be useful when communicating with international audiences or using more formal language.