1. The act of enrolling
   "The registration for the conference closed last week";
   - enrollment [N. Amer], enrolment [Brit, Cdn]
    
2. The act of adjusting something to match a standard
   "The printer required colour registration to ensure accurate alignment";
   - adjustment, readjustment
    
3. A document certifying an act of registering
   "The car's registration proved ownership and legal operation"
    
4. The body of people (such as students) who register or enrol at the same time
   "The university saw a record registration for the fall semester";
   - enrollment [N. Amer], enrolment [Brit, Cdn]
    
5. (music) the sound property resulting from a combination of organ stops used to perform a particular piece of music; the technique of selecting and adjusting organ stops
   "The organist's skilful registration brought out the full range of the instrument"
    
6. [Brit] The number on the licence plate that identifies the car that bears it
   "The witness provided the police with the suspect's registration number";
   - license number [N. Amer], registration number, licence number [Brit, Cdn], reg [Brit, informal]

Derived forms: registrations

Type of: body, bona fides, calibration, certificate, certification, credential, credentials, entrance, entry, incoming, ingress, number, sound property, standardisation [Brit], standardization

Encyclopedia: Registration, Admission and Status