Cartesian coordinates, abscissa, aim, altitude, aspect, attitude, bearing, bearings, bent, celestial navigation, compass bearing, compass direction, coordinates, course, current, cylindrical coordinates, dead reckoning, declination, direction, direction line, drift, equator coordinates, exposure, false horizon, fix, frontage, heading, helmsmanship, horizon, inclination, latitude, lay, lee side, lie, line, line of direction, line of march, line of position, longitude, magnetic bearing, navigation, ordinate, orientation, pilotage, piloting, point, polar coordinates, position, position line, quarter, radio bearing, range, relative bearing, right ascension, run, sea line, sensible horizon, set, skyline, steerage, steering, tack, tendency, tenor, track, trend, true bearing, vector, visible horizon, way, weather side