verb

enroll

in-ROHL/ɪnˈroʊl/

To sign up or officially register someone for participation.

The registrar enrolls the woman, stamping her application and handing over a membership card.

At a simple membership registration desk, a registrar completes an older woman's enrollment by stamping her application and handing her a plain membership card.

Etymology

To enroll people was literally to put their names into a roll—an official record kept on a scroll. Recording the name establishes membership or participation.

In context

MacLean Center for Clinical Medical Ethics35:18

we've been able to enroll the clinicians of the entire Institute in a research trial we got 80% participation of the clinicians

Atul Gawande "Being Mortal: Medicine and What Matters in the End"

More examples

You can enroll in health coverage through your employer.
The company automatically enrolls new employees in its retirement plan.
I enrolled in a first-aid course last week.

Forms

enroll · enrolls · enrolled · enrolling

enrollment noun — The act of officially registering for participation.

Similar words

register: Emphasizes entering someone's name or details in official records.
join: Means becoming a member, without necessarily completing formal registration.