footstep in WordNet English dictionary

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