registration

registration /ˌrɛʤəˈstreɪʃən/ noun
plural registrations
registration
/ˌrɛʤəˈstreɪʃən/
noun
plural registrations
Britannica Dictionary definition of REGISTRATION
1 
a  : the act or process of entering information about something in a book or system of public records
[noncount]
— often + of
[count]
b  : the act or process of entering names on an official list
[noncount]
[count]
2 
[count] US : a document showing that something (such as a vehicle) has been officially registered