Semi - Definition
semi
n 1: one of the two competitions in the next to the last round
of an elimination tournament [syn: semifinal, semi]
2: a truck consisting of a tractor and trailer together [syn:
trailer truck, tractor trailer, trucking rig, rig,
articulated lorry, semi]
3: a trailer having wheels only in the rear; the front is
supported by the towing vehicle [syn: semitrailer, semi]