The photographer has acknowledged a/his 'debt' to Andy Warhol. [=the photographer has said that his work was influenced by the photographs made by Andy Warhol]
banks with millions of dollars of 'bad debt' [=banks that have loaned millions of dollars that will not be repaid]
She's finally paid off her mortgage 'debt'. [=the money that she owed the bank to pay for her house]
(..) by various threads. The obvious one, which we know from the beginning of the scene, is Jorah. Sam saved him, and so Jorah owes him this great debt. What none of them realize until midway through this scene is that they have another, horrible connection. There are all these things (..)2019 TvShow: Game of Thrones Title: Winterfell Season: 8 Episode 1