marry someone off
phrasal verb with marry verb uk/ˈmær.i/ us/ˈmer.i/ /ˈmær.i/
把（某人）嫁出去;为（某人）找对象
to make certain that someone, especially a female member of your family, gets married, or that she marries the person you have chosen
She was married off to the local doctor by the age of 16. 她16岁时被嫁给了这个本地医生。