Insane rescue of the driver from a semi-truck hanging over the Ohio River

Absolutely insane rescue of the driver from a semi-truck which was hanging over the Ohio River on the Clark Memorial Bridge, after getting into a collisionShow more

A semi-trailer truck, (also known by a wide variety of other terms - see below) is the combination of a tractor unit and one or more semi-trailers to carry freight. A semi-trailer attaches to the tractor with a type of hitch called a fifth wheel.

There are a wide variety of English-language terms for a semi-trailer truck, including:
US English:
Semi-trailer
Semi-truck
Truck & trailer
Semi
Big rig
Tractor-trailer,
Eighteen-wheeler