"The Thirty-Nine __" (5)

I believe the answer is:
steps
(Other definitions for steps that I've seen before include "Paces; measures" , "Footfalls" , "Measures taken" , "Procedures" , "Stairs; paces" .)
I believe the answer is:
steps
(Other definitions for steps that I've seen before include "Paces; measures" , "Footfalls" , "Measures taken" , "Procedures" , "Stairs; paces" .)