Hole in a sponge (4)

I believe the answer is:
pore
(Other definitions for pore that I've seen before include "Skin opening; look closely (over)" , "Sweat-gland opening" , "Closely study" , "Rope around the skin-opening" , "Where sweat appears" .)
I believe the answer is:
pore
(Other definitions for pore that I've seen before include "Skin opening; look closely (over)" , "Sweat-gland opening" , "Closely study" , "Rope around the skin-opening" , "Where sweat appears" .)