Absence or deficiency (of) (4)
I believe the answer is:
lack
(Other definitions for lack that I've seen before include "Shortage" , "Be wanting or without" , "Dearth" , "Deficiency or want" , "Deficiency (of something)" .)
I believe the answer is:
lack
(Other definitions for lack that I've seen before include "Shortage" , "Be wanting or without" , "Dearth" , "Deficiency or want" , "Deficiency (of something)" .)