Game description: If you didn't already know, a semi-trailer truck is the combination of a tractor unit and one or more semi-trailers. It is variously known as a transport in Canada; semi or single in Australia and New Zealand; semi, tractor-trailer, big rig, or eighteen-wheeler in the United States; and articulated lorry, abbreviated artic, in the United Kingdom, Ireland and New Zealand. Play Semi-Trailer Trucks Puzzle game and Jigsaw games free online on jigsaw-games.com. Solving pieces in a jigsaw game. Your mission is to drag pieces to fit them together.