reg·is·tra·tion 
/ˌrɛʤəˈstreɪʃən/ noun
plural reg·is·tra·tions /ˌrɛʤəˈstreɪʃən/ noun 1 a : the act or process of entering information about something in a book or system of public records [noncount] — often + of ▪ the registration of motor vehicles ▪ the registration of trademarks [count] ▪ trademark registrations
b : the act or process of entering names on an official list [noncount] ▪ Student registration (for courses) ends today. ▪ Voter registration begins today. ▪ A $75 registration fee is due. [count] ▪ Registrations for the test/course are lower this year than they were last year. [=fewer people have registered for the test/course this year] 2 [count] US : a document showing that something (such as a vehicle) has been officially registered
▪ The police officer asked to see my driver's license and registration.
b : the act or process of entering names on an official list [noncount] ▪ Student registration (for courses) ends today. ▪ Voter registration begins today. ▪ A $75 registration fee is due. [count] ▪ Registrations for the test/course are lower this year than they were last year. [=fewer people have registered for the test/course this year]
▪ The police officer asked to see my driver's license and registration.
