P3R1E1R1E1G2I1S1T1R1A1T1I1O1N1
18 points
PREREGISTRATION is validvalid
the act of preregistering [n]
a special registration (as for returning students) prior to an official registration period [n]
the act of preregistering [n]
a special registration (as for returning students) prior to an official registration period [n]