to have or take an inclined or oblique direction or angle considered with reference to a vertical or horizontal plane; slant.
2.
to move at an inclination or obliquely: They sloped gradually westward.
–verb (used with object)
3.
to direct at a slant or inclination; incline from the horizontal or vertical: The sun sloped its beams.
4.
to form with a slope or slant: to slope an embankment.
–noun
5.
ground that has a natural incline, as the side of a hill.
6.
inclination or slant, esp. downward or upward.
7.
deviation from the horizontal or vertical.
8.
an inclined surface.
9.
Usually, slopes.hills, esp. foothills or bluffs: the slopes of Mt. Kilimanjaro.
10.
Mathematics.
a.
the tangent of the angle between a given straight line and the x-axis of a system of Cartesian coordinates.
b.
the derivative of the function whose graph is a given curve evaluated at a designated point.
11.
Slang:Disparaging and Offensive. an Asian, esp. a Vietnamese.
—Idiom
12.
slope off, Chiefly BritishSlang. to make one's way out slowly or furtively.
Origin: 1495–1505; aphetic var. of aslope; akin to slip1
Related forms:
slop⋅ing⋅ly, adverb
slop⋅ing⋅ness, noun
Synonyms: 1.Slope,slant mean to incline away from a relatively straight surface or line used as a reference. To slope is to incline vertically in an oblique direction: The ground slopes (upward or downward) sharply here.To slant is to fall to one side, to lie obliquely to some line whether horizontal or perpendicular: The road slants off to the right.
[slohp] 
verb, sloped, slop⋅ing, noun 