The inclined surface of any part of the Earth's surface, as a hillslope; also, a broad part of a continent descending toward an ocean, as the Pacific slope.
(Source: BJGEO)
To be at an angle; to move downwards.
the property possessed by a line or surface that departs from the horizontal
be at an angle; "The terrain sloped down"
an elevated geological formation; "he climbed the steep slope"; "the house was built on the side of the mountain"
the property possessed by a line or surface that departs from the horizontal; "a five-degree gradient"