What is another word for "debtor"?

Roget's Thesaurus (1911) lists these synonyms for "debtor": account, accountable, accountant, acquit, actuary, and, answer, answerable, application, apply, arithmetic, arrear, assets, audit, auditor, bad, bail, balance, bank, bankrupt, bankruptcy, bean, become, behind, behindhand, bill, bogus, book, bookkeeper, bookkeeping, borrow, borrower, both, break, bring, budget, button, capital, carry, cash.