返済

1. Origins, structure, and basic meaning

• Structure: 返済 is read as へんさい and is a noun and する verb for repaying borrowed money or a debt.
• Basic usage: Debt repayment appears in 借金の返済, while the amount to repay appears in 返済額.

2. Common pitfalls and similar expressions

• Object and amount
  • It combines with a monetary obligation such as a loan or debt, and 返済額 names the amount being repaid.
• Difference from 返却
  • 返却 means returning a borrowed object; 返済 means paying back borrowed money or a debt.