/ ˌredʒɪˈstreɪʃn; NAmE / noun
1.
[ U , C ] the act of making an official record of sth/sb :
the registration of letters and parcels
the registration of students for a course
registration fees
vehicle registrations
the registration of a child's birth
2.
[ U , C ] a document showing that an official record has been made of sth
—compare logbook
3.
[ C ] ( BrE ) = registration number
4.
[ U ] ( BrE ) the time when a teacher looks at the list of students on the class register and checks that the students are present
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WORD ORIGIN
mid 16th cent.: from medieval Latin registratio(n-) , based on Latin regerere enter, record.