Identity, ego (4)
I believe the answer is:
self
I believe this is a double definition.
'identity' is the first definition.
(I know that Self is a type of identity)
'ego' is the second definition.
(I know that ego can be written as self)
(Other definitions for self that I've seen before include "Ego, identity" , "one's identity" , "Person's distinct identity" , "A person's awareness of their own identity" , "Will the author" .)