consignment vs payload

consignment and payload both are nouns.

Word	Noun	Adjective	Verb	Adverb
consignment	Yes	No	No	No
payload	Yes	No	No	No

As nouns, consignment and payload are synonyms defined as:

Other synonyms of consignment include cargo, freight, lading, load, loading, shipment.

consignment (noun)	payload (noun)
the official act of consigning a person to confinement (as in a prison or mental hospital)	goods carried by a large vehicle
the delivery of goods for sale or disposal	the front part of a guided missile or rocket or torpedo that carries the nuclear or explosive charge or the chemical or biological agents
goods carried by a large vehicle