What is another word for successor?
Pronunciation: [səksˈɛsə] (IPA) 
A successor is someone who takes over a position or role that someone else had. There are a number of synonyms for this word, including heir, inheritor, replacement, follower, and next in line. These words all represent someone who is taking on the responsibilities of someone else, often in a leadership or management context. Other words that can be used in place of successor include substitute, surrogate, delegate, and understudy. Each of these words carries its own unique connotations and nuances, so it's important to choose the right word based on the particular context and situation in which it is being used.
