successor
nounOne that succeeds another.
nounOne who or that which succeeds or follows; one who takes the place which another has left, and sustains the like part or character: correlative to predecessor.
nounOne who succeeds or follows; one who takes the place which another has left, and sustains the like part or character; — correlative to 
A person or thing that 
The next 
A person who 
The 
a thing or person that immediately replaces something or someone
nouna person who inherits some title or office
nouna person who follows next in order
