debt

noun

• An action, state of mind, or object one has an obligation to perform for another, adopt toward another, or give to another.
• The state or condition of owing something to another.

  "I am in your debt."

• Money that one person or entity owes or is required to pay to another, generally as a result of a loan or other financial transaction.
• An action at law to recover a certain specified sum of money alleged to be due.