heiress
noun [ C ] uk/ˈeə.res/ us/ˈer.es/
女继承人，嗣女
a woman or girl who will receive or already has received a lot of money, property, or a title from another person, especially an older member of the same family, when that person dies
the heiress to the throne 王位的女继承人
a Texan oil heiress 得克萨斯石油的继承人
Compare: heir