Enroll (verb)

1. To register or enter (someone) as a member or student in a school, course, program, etc.
2. To register oneself as a member of an organization or group.

Origin:

From french enrolar, from old french enroler, from en- ("in") + roler ("to roll").

Examples:

1. He enrolled in the university.
2. She enrolled her child in the school.
3. I am going to enroll in a course next semester.
4. The company enrolled him in the training program.
5. I am going to enroll in the club.