1. a person who directs the route or course of a ship, aircraft, or other form of transportation, especially by using instruments and maps: "the starry sky was a navigator's dream"
▪ a person who explores by sea: "New Zealand was discovered by Dutch navigator, Abel Tasman"
▪ an instrument or device that assists in directing the course of a vessel or aircraft.
▪ a browser program for retrieving data on the World Wide Web or another information system.