Bankruptcy is designed to provide relief from debts. However, all debts are treated the same. While what might happen to any given debt can become a very fact-particular inquiry, there's a few categorizations that are very basic to understanding the bankruptcy process.
General Unsecured Debt
A general unsecured claim is an unsecured claim, i.e. a claim without any associated collateral, which is not entitled to priority treatment under the bankruptcy code. Means testing for chapter 13 is largely concerned with what payments, if any, the general unsecured creditors are to receive.