The Collaborative International Dictionary of English v.0.48:

Slope \Slope\, adv.
   In a sloping manner. [Obs.] --Milton.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Slope \Slope\, v. t. [imp. & p. p. Sloped; p. pr. & vb. n.
   Sloping.]
   To form with a slope; to give an oblique or slanting
   direction to; to direct obliquely; to incline; to slant; as,
   to slope the ground in a garden; to slope a piece of cloth in
   cutting a garment.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Slope \Slope\, v. i.
   1. To take an oblique direction; to be at an angle with the
      plane of the horizon; to incline; as, the ground slopes.
      [1913 Webster]

   2. To depart; to disappear suddenly. [Slang]
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Slope \Slope\, n. [Formed (like abode fr. abide) from OE.
   slipen. See Slip, v. i.]
   1. An oblique direction; a line or direction including from a
      horizontal line or direction; also, sometimes, an
      inclination, as of one line or surface to another.
      [1913 Webster]

   2. Any ground whose surface forms an angle with the plane of
      the horizon.
      [1913 Webster]

            buildings the summit and slope of a hill.
                                                  --Macaulay.
      [1913 Webster]

            Under the slopes of Pisgah.           --Deut. iv.
                                                  49. (Rev.
                                                  Ver.).
      [1913 Webster]

   3. The part of a continent descending toward, and draining
      to, a particular ocean; as, the Pacific slope.
      [Webster 1913 Suppl.]

   Note: A slope, considered as descending, is a declivity;
         considered as ascending, an acclivity.
         [1913 Webster]

   Slope of a plane (Geom.), the direction of the plane; as,
      parallel planes have the same slope.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Slope \Slope\, a.
   Sloping. "Down the slope hills." --Milton.
   [1913 Webster]

         A bank not steep, but gently slope.      --Bacon.
   [1913 Webster]

WordNet (r) 3.0 (2006):

slope
    n 1: an elevated geological formation; "he climbed the steep
         slope"; "the house was built on the side of a mountain"
         [syn: slope, incline, side]
    2: the property possessed by a line or surface that departs from
       the horizontal; "a five-degree gradient" [syn: gradient,
       slope]
    v 1: be at an angle; "The terrain sloped down" [syn: slope,
         incline, pitch]

Moby Thesaurus II by Grady Ward, 1.0:

76 Moby Thesaurus words for "slope":
   acclivity, angle, angularity, ascend, ascent, bank, bend, bevel,
   bezel, camber, cant, careen, chute, climb, decline, declivity,
   deflection, descend, descent, deviation, dip, downgrade, drop,
   drop off, easy slope, fall, fall away, fall off, fleam,
   gentle slope, glacis, go downhill, go uphill, grade, gradient,
   hanging gardens, heel, helicline, hill, hillside, inclination,
   incline, inclined plane, keel, launching ramp, lean, leaning,
   leaning tower, list, mount, obliqueness, obliquity, pitch, rake,
   ramp, recline, retreat, rise, scarp, shelve, shelving beach, side,
   sidle, sink, skew, slant, steep slope, stiff climb, swag, sway,
   talus, tilt, tip, tower of Pisa, upgrade, uprise



U.S. Gazetteer Counties (2000):

Slope -- U.S. County in North Dakota
   Population (2000):    767
   Housing Units (2000): 451
   Land area (2000):     1217.939586 sq. miles (3154.448913 sq. km)
   Water area (2000):    1.282691 sq. miles (3.322154 sq. km)
   Total area (2000):    1219.222277 sq. miles (3157.771067 sq. km)
   Located within:       North Dakota (ND), FIPS 38
   Location:             46.428212 N, 103.439994 W
   Headwords:
    Slope
    Slope, ND
    Slope County
    Slope County, ND