PAYLOAD
cargo, lading, freight, load, loading, payload, shipment, consignment
(noun) goods carried by a large vehicle
warhead, payload, load
(noun) the front part of a guided missile or rocket or torpedo that carries the nuclear or explosive charge or the chemical or biological agents
Source: WordNet® 3.1
Etymology
Noun
payload (plural payloads)
That part of a cargo that produces revenue.
The total weight of passengers, crew, equipment, and cargo carried by an aircraft or spacecraft.
That part of a rocket, missile, propelled stinger, or torpedo that is not concerned with propulsion or guidance, such as a warhead or satellite.
(computing) The functional part of a computer virus or another type of malware program, rather than the part that spreads it.
(communication) The actual data in a data stream.
Source: Wiktionary