Does debit mean you owe them money?

Yes, in accounting terms, a debit typically indicates an increase in assets or expenses, or a decrease in liabilities or equity. When you see a debit in your bank account, it usually means money is being taken out, which can imply that you owe money if it leads to a negative balance. In contrast, a credit generally indicates money coming in. Therefore, debits can signify that you owe money depending on the context.