Heir presumptive refers to the person who is next in line to inherit a title or property if the current holder of that title or property dies. Some synonyms for the term include successor, heir apparent, presumptive heir, and next in line. Another term that can be used is crown prince, which specifically refers to the heir to a monarchy. In some cases, the term heir apparent may be used interchangeably with heir presumptive, although heir apparent typically refers to someone who has a clearer right to inherit than an heir presumptive. Other related terms include heir-at-law and legal heir, which refer to someone who inherits property or assets based on their relationship to a deceased family member.