J.&W.O.: Jettison and washing overboard
JETSAM: Goods from a ship's cargo, or parts of its equipment, that have been thrown overboard to lighten the load in time of danger, or to set a stranded ship adrift.
Joint Venture: A form of business partnership involving joint management and the sharing of risks and profits between enterprises sometimes based in different countries.
Just-In-Time (JIT): The principle of production and inventory control in which goods arrive when needed for production or use.