semi-truck
nounUK /ˈsɛmi trʌk/
US /ˈsɛmi trʌk/
A semi-truck is a big truck that pulls a long trailer behind it.
The semi-truck carried boxes of toys across the country.
OTHER MEANINGS
2. A truck cab built to pull a detachable trailer.
He bought a used semi-truck to start his own hauling business.
3. A large vehicle used for moving heavy goods over long distances.
Semi-trucks lined up at the loading dock to pick up their cargo.
4. In informal use, any very large truck seen on the road.
Traffic slowed down behind a slow-moving semi-truck on the hill.