noun.
A device that directs the course of an aircraft or missile.
The Century Dictionary and Cyclopedia
noun.
One who navigates or sails; especially, one who directs the course of a ship, or is skilful in the art of navigation.
noun.
A laborer on a “navigation” or canal (see navigation, 4), or on a railway. Now usually abbreviated navvy (see navvy).
the GNU version of the Collaborative International Dictionary of English
noun.
One who navigates or sails; esp., one who direct the course of a ship, or one who is skillful in the art of navigation; also, a book which teaches the art of navigation.