1. noun
a) A map for a very particular purpose, such as shipping or aeroplanes/airplanes, showing information useful for that purpose and ignoring most other information.
2. verb
a) To draw a chart or map.
"Lets chart how were going to get from here to there."
b) To draw or figure out a route or plan.
"The song has charted for 1500 weeks!"
Wikipedia foundation.