The term 'semester-ending exam' refers to a test that is taken at the end of a semester of study. It is also known as a FINAL exam, which is a five-letter word. This type of exam is typically used to assess a student's knowledge and understanding of the material they have studied throughout the semester. It is usually a comprehensive test that covers all the topics that were taught during the semester. The results of the exam are often used to determine a student's grade for the course.