to go down : to go or move from a higher to a lower place or level. : to slope or lead downward. : to go or change to a worse state or condition. Source: ...
In its simplest sense,
1.2(Of a road, path, or flight of steps) slope or lead downwards: a side road
v. de·scend·ed, de·scend·ing, de·scends. v.intr. 1. To move from a higher to a lower place; come or go down. 2. To slope, extend, or incline downward: "A rough ...