(n.) One who owes a debt; one who is indebted; -- correlative to creditor.

accountability accountable answerable for arrearage arrears beholden borrowing debit debtor default deficit delinquency due encumbered encumbrance financing hire purchase hitting hitting-up hocking in arrears in debt in hock in the red indebted indebtedness installment buying installment plan liability liable money-raising mortgaging nonpayment obligation owing pawning pledging responsibility responsible sin straitened touching under obligation wickedness wrong