footstep

footstep (http://definr.com/footstep)

     n 1: the sound of a step of someone walking; "he heard footsteps
          on the porch" [syn: footfall, step]
     2: the act of taking a step in walking
     3: the distance covered by a step; "he stepped off ten paces
        from the old tree and began to dig" [syn: pace, step,
        stride]