a person who directs or assists in the navigation of a ship; sailor.

( initial capital letter ) Aerospace . one of a series of U.S. space probes that obtained scientific information while flying by or orbiting around the planets Mars, Mercury, and Venus.

noun

bluejacket , captain , crew , mate , navigator , sailor , salt * , sea dog * , seafarer , shipmate , swab * , yachtie , jack , jack-tar , sea dog , seaman , gob , salt , swabbie , tar , yachtsman , yachtswoman