A small pick-up truck or ute, generally open and sometimes fitted with a removable canopy, but distinct from an enclosed van and a large truck.
A small bowl or container, sometimes with a cover such as a Tupperware container.
A chassis or framework-like structure underneath a railroad car to which wheel axles (and, hence, wheels) are attached through bearings. (Not to be confused with railway truck or railtruck, which are British English synonyms of railroad car)