A sophomore is a student in their second year of high school or college. In the United States, high school typically includes four grades: freshman, sophomore, junior, and senior. Sophomores are usually around 15 to 16 years old and are often more experienced than freshmen, having adjusted to the school environment. In college, sophomores are usually in their second year of a degree program. They often begin to focus on their major and take more specialized courses. This year is important for academic growth and planning for future studies or career paths, as students start to explore their interests more deeply.