tractor-trailer
nounUK /ˈtræktə ˈtreɪlə/
US /ˈtræktər ˈtreɪlər/
A big truck with two parts: a front part that pulls and a long back part that carries things.
The tractor-trailer carried boxes of toys across the country.
OTHER MEANINGS
2. A vehicle made of a tractor unit and a detachable trailer used for hauling freight.
The company owns a fleet of tractor-trailers for long-distance deliveries.
3. The combination of a towing cab and a semi-trailer joined by a hitch.
He learned to back up a tractor-trailer during his driving test.
4. A large freight truck used in shipping and logistics.
A tractor-trailer blocked the loading dock while unloading.