To make a map or plan of an area. The explorers charted the unknown territory to help future travelers.
To record or follow the progress or development of something. The scientist charted the growth of the plants over several months.
To plan a course of action. The team charted a new strategy to improve sales.
Of a song, album, etc.: to enter a popularity chart or occupy a specified position on it. Their debut single charted at number two on the UK charts.