n. One who packs; specifically, a person whose business it is to pack goods for transportation.n. One who prepares and packs provisions, as beef, pork, oysters, fruit, etc., for preservation or for market.n. A machine used for packing.n. One who is engaged in transporting goods, etc., on pack-animals.n. A government officer charged with the inspection of provisions packed for export.n. A ring by which the space between the tubing and the walls of an oil-well is closed and made gas-tight. See oil-well packing, under packing.n. The variously constructed mechanism by which the grain cut by a reaping-machine is packed or compressed on the binding-table and held till embraced and bound by the twine.n. Same as pack-animal.n. One who packs juries, cards, facts, etc., to serve purposes of his own; one who is a confederate in fraudulent enterprises. Compare pack, transitive verb, 8.n. In a type-setting machine, an assembler.