Being enrolled in and attending a school or university; holding student status at an educational institution.
在学証明書を発行してもらうために学生課へ行った。
I went to the student affairs office to get a certificate of enrollment.
彼は現在大学に在学中だ。
He is currently enrolled in university.
在学期間中にインターンシップに参加したい。
I want to participate in an internship while enrolled.