the lines on the map is called longitude and latitude.
A line could mean any number of things. Maps generally have keys which tell what means what. Check the key, find your answer.
stars and lines.
A legend on a political map is like a map key. It tells what different symbols stand for on the map.
Depending on the type of map you are referring to, the solid black line could indicate a national boundary. If it is a map of states, it could be a state boundary.
A Red Line
Milestone
look for the map legend or key ON THE MAP
an equator line
the meaning of lines to stand
The horizon
It usually stands for rivers or borders, depends which map you're looking at.
It can mean anything but normally it means a river.
marks on a map that stand for real places or real features on a map
Measure of Academic Progress
It shows whatever is on a map. For example if you have two lines on a map, you wouldn't know what each of the lines mean unless there is a distinction between them. If one was a regular line with no other markings and the other was a line with slashes between them, the key would say what each of the lines stand for. Oh and the key is usually a box.
A blue line on a map is a lake ,river , or body of water
Water represents a blue line on a map.
n on a map stands for north on a compass
On an OS map, it's a Public House