soph·o·more /ˈsɑ:fˌmoɚ/ noun plural soph·o·mores
] US :
a student in the second year of high school or college ▪ She's a sophomore in high school.
— often used before another noun ▪ Their son is in his sophomore year in college. ▪ The team's quarterback improved during his sophomore season.
— compare freshman, junior, senior