WordNet
foster-son
n. someone who is raised as a son although not related by birth
Usage examples of "foster-son".
As I was leaving, the woman of the house told us that the painter had asked four louis, and that she had give two louis to her foster-son.
I told the country-woman about it yesterday morning, and she said that she had a foster-son at Anneci, who was a miniature painter.
Yet twice, in the last days of falling leaves, when the red larch trees stood bare in the icy wind that blew over Lothian, she dreamed of her foster-son Gwydion.