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]
(..) And once you've won, once you're king of the mountain, what happens to his mind? Is this love, Agent Romanoff? Love is for children. I owe him a debt. Tell me. Before I worked for S.H.I.E.L. D... I... Well, I made a name for myself. I have a very specific skill set. (..)2012 The Avengers