noun
registration
rej-ih-STRAY-shuhn/ˌredʒɪˈstreɪʃn/
The official recording of someone or something as enrolled.
Registration for summer classes opens on the first Monday.

Etymology
The base meant entering something in a register, originally a record book or regularly kept written account. Registration names this act, including officially adding a person's name to a list.
In context
have to register in person with a specific set of documents that millions of Americans don't have access to. Imagine no online registration anymore, no mail-in registration, no automatic voter registration.
More examples
- You can complete your voter registration online.
- The office processes hundreds of vehicle registrations each week.
- Conference registration includes admission to all workshops.
Forms
registration · registrations
register verb — To enter someone or something in official records.
registrant noun — A person who officially enrolls.
Similar words
- enrollment
- Emphasizes joining a course or program, rather than official recording.
- recording
- Covers preserving any information, not necessarily documenting official enrollment.