Noun has 3 senses

• semi(n = noun.event) semifinal - one of the two competitions in the next to the last round of an elimination tournament;



• semi(n = noun.artifact) articulated lorry, rig, tractor trailer, trailer truck, trucking rig - a truck consisting of a tractor and trailer together;




• semi(n = noun.artifact) semitrailer - a trailer having wheels only in the rear; the front is supported by the towing vehicle;