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1. One of the two competitions in the next to the last round of an elimination tournament
   - semifinal, semi-final
    
2. A truck consisting of a tractor and trailer together
   - trailer truck, tractor trailer, trucking rig, rig [N. Amer], articulated lorry
    
3. A trailer having wheels only in the rear; the front is supported by the towing vehicle
   - semitrailer [N. Amer], trailer

1. Half
    
2. Partly, to some degree, partly similar
   "semi-homemade"; "semi-intelligent thoughts"
   - quasi-

Derived forms: semis

Type of: lorry [Brit], match, motortruck [N. Amer], trailer, truck

Part of: elimination tournament

Encyclopedia: Semi