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}]
Source: WordNet® 2.0