/ səkˈsesə(r); NAmE / noun
successor (to sb/sth) a person or thing that comes after sb/sth else and takes their/its place :
Who's the likely successor to him as party leader?
Their latest release is a worthy successor to their popular debut album.
—compare predecessor
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WORD ORIGIN
Middle English : from Old French successour , from Latin successor , from the verb succedere come close after, from sub- close to + cedere go.