rollover

Universal Words noun 1 [U] (technical) the act of allowing money that is owed to be paid at a later date 2 [U,C] (BrE) a prize of money in a competition or LOTTERY in a particular week, that is added to the prize given in the following week if nobody wins it: a rollover jackpot 3 [U] (especially AmE) the turning over of a vehicle during an accident