From WordNet (r) 2.0 (August 2003) [wn]:
footfall
n : the sound of a step of someone walking; "he heard footsteps
on the porch" [syn: footstep, step]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Footfall \Foot"fall`\, n.
A setting down of the foot; a footstep; the sound of a
footstep. --Shak.
[1913 Webster]
Seraphim, whose footfalls tinkled on the tufted floor.
--Poe.
[1913 Webster]