小学生 (しょうがくせい) Elementary School Student, Primary School Student
中学生 (ちゅうがくせい) Middle School Student, Junior High School Student
高校生 (こうこうせい) High School Student, High Schooler
大学生 (だいがくせい) University Student, College Student, Uni Student
大学院生 (だいがくいんせい) Graduate Student, Grad Student