As nouns the difference between freighter and cargoship
is that freighter is one who loads a ship, or one who charters and loads a ship while cargoship is alternative form of cargo ship.
freighter
English
Noun
(
en noun)
One who loads a ship, or one who charters and loads a ship.
One employed in receiving and forwarding freight.
One for whom freight is transported.
A vessel used mainly to carry freight; a cargo ship.