The Collaborative International Dictionary of English v.0.48:

Incline \In*cline"\, v. i. [imp. & p. p. Inclined; p. pr. &
   vb. n. Inclining.] [OE. inclinen, enclinen, OF. encliner,
   incliner, F. incliner, L. inclinare; pref. in- in + clinare
   to bend, incline; akin to E. lean. See Lean to incline.]
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   1. To deviate from a line, direction, or course, toward an
      object; to lean; to tend; as, converging lines incline
      toward each other; a road inclines to the north or south.
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   2. Fig.: To lean or tend, in an intellectual or moral sense;
      to favor an opinion, a course of conduct, or a person; to
      have a propensity or inclination; to be disposed.
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            Their hearts inclined to follow Abimelech. --Judges
                                                  ix. 3.
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            Power finds its balance, giddy motions cease
            In both the scales, and each inclines to peace.
                                                  --Parnell.
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   3. To bow; to incline the head. --Chaucer.

   Syn: To lean; slope; slant; tend; bend.
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The Collaborative International Dictionary of English v.0.48:

Incline \In*cline"\, v. t.
   1. To cause to deviate from a line, position, or direction;
      to give a leaning, bend, or slope to; as, incline the
      column or post to the east; incline your head to the
      right.
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            Incline thine ear, O Lord, and hear.  --Is. xxxvii.
                                                  17.
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   2. To impart a tendency or propensity to, as to the will or
      affections; to turn; to dispose; to influence.
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            Incline my heart unto thy testimonies. --Ps. cxix.
                                                  36.
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            Incline our hearts to keep this law.  --Book of Com.
                                                  Prayer.
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   3. To bend; to cause to stoop or bow; as, to incline the head
      or the body in acts of reverence or civility.
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            With due respect my body I inclined.  --Dryden.
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The Collaborative International Dictionary of English v.0.48:

Incline \In*cline"\, n.
   An inclined plane; an ascent or descent; a grade or gradient;
   a slope.
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WordNet (r) 3.0 (2006):

incline
    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: an inclined surface connecting two levels [syn: ramp,
       incline]
    v 1: have a tendency or disposition to do or be something; be
         inclined; "She tends to be nervous before her lectures";
         "These dresses run small"; "He inclined to corpulence"
         [syn: tend, be given, lean, incline, run]
    2: bend or turn (one's ear) towards a speaker in order to listen
       well; "He inclined his ear to the wise old man"
    3: lower or bend (the head or upper body), as in a nod or bow;
       "She inclined her head to the student"
    4: be at an angle; "The terrain sloped down" [syn: slope,
       incline, pitch]
    5: feel favorably disposed or willing; "She inclines to the view
       that people should be allowed to expres their religious
       beliefs"
    6: make receptive or willing towards an action or attitude or
       belief; "Their language inclines us to believe them" [syn:
       dispose, incline] [ant: disincline, indispose]