A person or company that hires or leases a ship, aircraft, or other vehicle for a specified period.
The charterer arranged for the cargo to be loaded onto the vessel at the port.
In maritime and aviation law, the party to whom a vessel or aircraft is let under a charter party, often assuming the rights and responsibilities of an owner for the duration of the charter.
Under the time charter, the charterer became responsible for arranging bunkers and port charges.