unload
Word family
Synonym discussion
Sense: verb/1
These verbs all involve removing contents, but differ in scope and formality. 'Unload' is the most neutral everyday word, used for trucks, ships, guns, and cameras. 'Empty' is broader — you can empty a box, a room, or a bottle, not just a vehicle — and does not imply careful handling of specific items. 'Discharge' is formal and primarily commercial or military, referring to unloading cargo from a ship or freight train. 'Offload' is slightly informal and has expanded to also mean transferring responsibility or work to someone else. For example, a warehouse worker unloads pallets from a truck, a captain discharges the ship's cargo, and a tired colleague offloads part of the project onto another team member.
Common collocations
Etymology
The verb 'unload' is formed in English by adding the prefix 'un-' (meaning 'reverse of') to the verb 'load'. 'Load' itself comes from Old English 'lād' (a way, course, or carrying), which traces back to Proto-Germanic '*laithō' and ultimately to Proto-Indo-European '*leit-' (to go forth). The sense of physically removing cargo dates back to at least the 16th century, with the emotional and sports meanings emerging in the 19th and 20th centuries.