carload vs shipload

carload and shipload both are nouns.

Word	Noun	Adjective	Verb	Adverb
carload	Yes	No	No	No
shipload	Yes	No	No	No

As nouns, carload and shipload are synonyms defined as:

carload and shipload: the amount of cargo that can be held by a boat or ship or a freight car

Other synonyms of carload include boatload.

carload (noun)	shipload (noun)
a gathering of passengers sufficient to fill an automobile	the amount of cargo that can be held by a boat or ship or a freight car
the amount of cargo that can be held by a boat or ship or a freight car