The symbol on a map showing direction?

The compass rose indicates the directions on a map, although many maps will use the top of the map as North. The compass rose may be marked in the legend or separately on the map.
The North arrow and the compass rose show direction on a map.
The Compass Rose, which tells you North, East, South, West. It's usually located in one of the corners of the map.
The direction and orientation of a map is typically indicated by the compass rose, sometimes referred to as the windrose. This is usually found in a corner of a map.