Longman Dictionary of Contemporary English - unload

~ v 1 »VEHICLE/SHIP« a) to remove a load from a vehicle, ship etc  (unload sth from sth)  (The driver unloaded some boxes from the back of the truck.) b) if a vehicle, ship etc unloads, the goods that it carries are removed from it  (The ship is unloading at the dock right now.) 2 »GUN« to remove the bullets or shells (shell1 (2,3)) from a gun 3 »CAMERA« to remove the film from a camera 4 »GET RID OF« informal a) to get rid of something illegal or not very good by selling it quickly  (unload sth on/onto)  (Hundreds of cheap videos were unloaded on the British market.) b) to get rid of work or responsibility by giving it to someone else  (unload sth on/onto sb)  (Don't let him unload his problems onto you.)