Illnesses, maladies (8)
I believe the answer is:
diseases
I believe this is a double definition.
'illnesses' is the first definition.
(disease is a kind of illness)
'maladies' is the second definition.
(disease is a kind of malady)
(Other definitions for diseases that I've seen before include "Illness brought on by infections or diet" , "Illnesses, maladies" , "Afflictions, disorders" , "Disorders, illnesses" , "Sicknesses" .)