noun

1. A small wheel or roller, specifically the wheel of a gun carriage.

2. The ball on top of a flagpole.

3. On a wooden mast, a circular disc (or sometimes a rectangle) of wood near or at the top of the mast, usually with holes or sheaves to reeve signal halyards; also a temporary or emergency place for a lookout. "Main" refers to the mainmast, whereas a truck on another mast may be called (on the mizzenmast, for example) "mizzen-truck".

Synonyms: hauler, lorry, rig, tractor trailer

verb

1. To drive a truck: Generally a truck driver's slang.

2. To convey by truck.

   “Last week, Cletus trucked 100 pounds of lumber up to Dubuque.”

3. To travel or live contentedly.

   “Keep on trucking!”