tractor-trailer

== English == === Alternative forms === tractor trailer === Noun === tractor-trailer (plural tractor-trailers) (chiefly Northeastern US) A large truck consisting of an engine and cab section (the tractor) and a cargo-carrying semi-trailer or trailer. Synonyms: (UK) articulated lorry, artic, truck and trailer, semi-truck, semi truck, juggernaut, (US, Canada) semi-trailer truck, semi, eighteen-wheeler, 18-wheeler, big rig, rig Coordinate term: (chiefly Australia) road train ==== Translations ====