Sure, I'd be happy to explain some common terminology used in the US school system!

Freshman: This term is used to describe a student in their first year of high school or college. In high school, a freshman is usually in the 9th grade and is new to the school. In college/university, a freshman is usually a freshman who has just graduated from high school.

Sophomore: This term is used to describe a student in their second year of high school or college/university. In high school, a sophomore is usually in the 10th grade. In college/university, a sophomore is usually a second-year student who has completed his or her freshman year.

Junior: This term is used to describe a student in their third year of high school or college/university. In high school, a junior is usually in the 11th grade. In college/university, a junior is usually a third-year student who has completed the first two years of studies.

Senior: This term is used to describe a student in their fourth and final year of high school or college/university. In high school, a senior is usually in the 12th grade and preparing to graduate. In college/university, a senior is usually a senior who has completed most of his or her major requirements and is preparing to graduate.

It's also worth noting that some schools use different terminology, such as 'year 9' instead of 'freshman' or 'year 1' instead of 'sophomore'. However, the general meaning is the same.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence