| Answer | Crossword Clue |
|---|---|
| TANDEM | Many a tractor-trailer |
| semitrailers | A tractor-trailer |
| semitrailer | A tractor-trailer |
| AXLE | One of several on a tractor-trailer |
| semi | detachable trailer for hauling freight, with wheels at the rear end, the forward end being supported by the rear of a truck tractor when attached |
| semis | detachable trailer for hauling freight, with wheels at the rear end, the forward end being supported by the rear of a truck tractor when attached |
