freighter

Short definition from Wiktionary

Adverb

1. 1
   One who loads a ship.
2. 2
   One who charters and loads a ship.
3. 3
   One employed in receiving and forwarding freight.
4. 4
   One for whom freight is transported.
5. 5
   A ship used mainly to carry freight.
6. 6
   An aircraft used mainly to carry freight; a cargo aircraft or cargo plane.