/ˈɛər əˈpærənt/ – Phrase
Definition: người thừa kế hiển nhiên.
A more throughout explanation: “Heir apparent” refers to a person who is in line to inherit a title, position, or property upon the death of the current holder, provided that the current holder does not have a child or other closer relative who would inherit instead.
Example: The eldest son of the king is considered the heir apparent to the throne.