enroll

Los estudiantes aceptados pueden inscribirse al comienzo de cualquier año de secundaria.

(transitive) To enter (a name, etc.) in a register, roll or list
(transitive) To enlist (someone) or make (someone) a member of.
(intransitive, reflexive) To enlist oneself (in something) or become a member (of something).
(intransitive, reflexive) To enlist oneself (in something) or become a member (of something).
(US, intransitive, reflexive) To enlist oneself (in something) or become a member (of something).
(Australia, New-Zealand, intransitive, reflexive) To enlist oneself (in something) or become a member (of something).
(obsolete, transitive) To envelop; to enwrap.
(intransitive) To curl up into a ball.