slope

An area of ground that tends evenly upward or downward.

"I had to climb a small slope to get to the site."

The degree to which a surface tends upward or downward.

"The road has a very sharp downward slope at that point."

The ratio of the vertical and horizontal distances between two points on a line; zero if the line is horizontal, undefined if it is vertical.

"The slope of this line is 0.5"

To tend steadily upward or downward.

"The road slopes sharply down at that point."

To form with a slope; to give an oblique or slanting direction to; to incline or slant.

"to slope the ground in a garden;   to slope a piece of cloth in cutting a garment"

(usually followed by a preposition) To try to move surreptitiously.

"I sloped in through the back door, hoping my boss wouldn't see me."

Sloping.

Slopingly