n. map; a draft or projection on paper of some part of the earth's surface; specifically, a hydrographical or marine map showing the coasts, islands, rocks, banks, channels, or entrances into harbors, rivers, and bays, the points of the compass, soundings or depth of water, etc., to regulate the courses of ships in their voyages.n. A sheet of any kind on which information is exhibited in a methodical or tabulated form: as, a historical chart; a genealogical chart; a chart of the kings of England.n. A written deed or charter.n. See projection.n. Synonyms Chart, Map. As the words are commonly used, a chart is a draft of some navigable water with its connected land-surface; a map is a draft of some portion of land with its connected water-surface, either as a separate work or as a division of a general geographical atlas.To lay down or delineate on a chart or map; map out: as, to chart a coast.To make charts.