debt
/det/noun
1- something, typically a sum of money, that is owed or due（尤指金钱）债务：
I paid off my debts
我还清了债务
mass noun a way to reduce Third World debt.减少第三世界债务的方法。
1.1
- mass noun the state of owing money欠债：
the firm is heavily in debt.
公司债台高筑。
1.2
- usu. in sing. a feeling of gratitude for a service or favour恩义：
we owe them a debt of thanks.
我们受他们的恩惠尚未感谢。
短语
be in someone's debt
- owe gratitude to someone for a service or favour欠某人人情债; 受某人的恩惠。
词源
Middle English dette: from Old French, based on Latin debitum 'something owed', past participle of debere 'owe'. The spelling change in French and English was by association with the Latin word.