[1] : The Collaborative International Dictionary of English v.0.48

step \step\, v. i. imp.  p. p. stepped; p. pr.  vb. n.
   stepping. as. staeppan; akin to ofries. steppa, d.
   stappen to step, stap a step, ohg. stepfen to step, g. stapfe
   a footstep, ohg. stapfo, g. stufe a step to step on; cf. gr.
   ? to shake about, handle roughly, stamp ?. cf. stamp, n.
    a.
   1. to move the foot in walking; to advance or recede by
      raising and moving one of the feet to another resting
      place, or by moving both feet in succession.
      1913 webster

   2. to walk; to go on foot; esp., to walk a little distance;
      as, to step to one of the neighbors.
      1913 webster

   3. to walk slowly, gravely, or resolutely.
      1913 webster

            home the swain retreats,
            his flock before him stepping to the fold.
                                                  --thomson.
      1913 webster

   4. fig.: to move mentally; to go in imagination.
      1913 webster

            they are stepping almost three thousand years back
            into the remotest antiquity.          --pope.
      1913 webster

   to step aside, to walk a little distance from the rest; to
      retire from company.

   to step forth, to move or come forth.

   to step in or to step into.
      a to walk or advance into a place or state, or to
          advance suddenly in.
          1913 webster

                whosoever then first, after the troubling of the
                water, stepped in, was made whole of whatsoever
                disease he had.                   --john v. 4.
          1913 webster
      b to enter for a short time; as, i just stepped into the
          house.
      c to obtain possession without trouble; to enter upon
          easily or suddenly; as, to step into an estate.

   to step out.
      a mil. to increase the length, but not the rapidity,
          of the step, extending it to thirty-tree inches.
      b to go out for a short distance or a short time.

   to step short mil., to diminish the length or rapidity of
      the step according to the established rules.
      1913 webster
see also:
stepped stepping stamp to step aside to step forth to step in 
to step into to step out to step short 

[2] : WordNet (r) 2.0

step
     n 1: any maneuver made as part of progress toward a goal; "the
          situation called for strong measures"; "the police took
          steps to reduce crime" syn: measure
     2: the distance covered by a step; "he stepped off ten paces
        from the old tree and began to dig" syn: footstep, pace,
         stride
     3: the act of changing location by raising the foot and setting
        it down; "he walked with unsteady steps"
     4: support consisting of a place to rest the foot while
        ascending or descending a stairway; "he paused on the
        bottom step" syn: stair
     5: relative position in a graded series; "always a step
        behind"; "subtle gradations in color"; "keep in step with
        the fashions" syn: gradation
     6: a short distance; "it's only a step to the drugstore" syn:
        stone's throw
     7: the sound of a step of someone walking; "he heard footsteps
        on the porch" syn: footfall, footstep
     8: a musical interval of two semitones syn: tone, whole
        tone, whole step
     9: a mark of a foot or shoe on a surface; "the police made
        casts of the footprints in the soft earth outside the
        window" syn: footprint, footmark
     10: a solid block joined to the beams in which the heel of a
         ship's mast or capstan is fixed
     11: a sequence of foot movements that make up a particular
         dance; "he taught them the waltz step" syn: dance step
     v 1: shift or move by taking a step; "step back"
     2: put down or press the foot, place the foot; "for fools rush
        in where angels fear to tread"; "step on the brake" syn:
        tread
     3: cause a computer to execute a single command
     4: treat badly; "this boss abuses his workers"; "she is always
        stepping on others to get ahead" syn: mistreat, maltreat,
         abuse, ill-use, ill-treat
     5: furnish with steps; "the architect wants to step the
        terrace"
     6: move with one's feet in a specific manner; "step lively"
     7: walk a short distance to a specified place or in a specified
        manner; "step over to the blackboard"
     8: place a ship's mast in its step
     9: measure distances by pacing; "step off ten yards" syn: pace
     10: move or proceed as if by steps into a new situation; "she
         stepped into a life of luxury"; "he won't step into his
         father's footsteps"
     also: stepping, stepped
see also:
measure footstep pace stride stair gradation 
stone's throw footfall tone whole tone whole step 
footprint footmark dance step tread mistreat 
maltreat abuse ill-use ill-treat stepping 
stepped 

[3] : WordNet (r) 2.0

stepping
     see step
see also:
step 

Stepping >> S Words
Stepping, definition of term: Stepping
stepping_pag1.html

Stepping Stone >> S Words
Stepping Stone, definition of term: Stepping Stone
stepping+stone_pag1.html