overdue

Compared meaning: related to money owed or a deadline (adjective).

比较义项：与付款到期或逾期有关（形容词，描述款项应付或逾期未付的状态）。

• due

  The everyday, neutral word for something that must be paid by a set time; it only states when payment is expected, not that it is late.

  日常、中性的词，表示某笔款项必须在约定时间内支付；只说明预期的支付时间，并不表示已经逾期。

  The rent is due on the first of next month, so plan ahead.

  房租下个月一号到期应付，所以要提前做好准备。

• overdue 本词

  Means the payment deadline has already passed; common in everyday speech about bills, library books, or any late payment, often with a sense of concern.

  表示付款截止日期已经过去；常用于日常口语中谈论账单、图书逾期或任何逾期未付的款项，通常带有一点担忧的意味。

  My car payment is three weeks overdue, and the bank keeps calling.

  我的车贷已经逾期三周了，银行一直在打电话催款。

• delinquent

  A more formal, mainly financial or legal term for a payment that is overdue, often implying an official record or consequence, as with loans, taxes or credit accounts.

  更正式、主要用于金融或法律语境的词，指逾期未付的款项，往往暗示会有正式记录或后果，如贷款、税款或信用账户。

  The bank flagged his account as delinquent after three missed payments.

  在连续三次未还款后，银行将他的账户标记为逾期未付。

• payable

  A formal, often contractual word for money that must be paid; commonly used to state by when, to whom or under what conditions payment should be made, without any sense of lateness.

  正式、常用于合同语境的词，指必须支付的款项；常用来说明支付的截止日期、对象或条件，本身不带有逾期的含义。

  Checks should be made payable to the landlord, not to me.

  支票应抬头写给房东，而不是写给我。

All four relate to money owed or a payment deadline. Due is the everyday, neutral word for a set payment time, not necessarily late. Overdue means the deadline has already passed. Delinquent is formal, for overdue payments like loans. Payable states what must be paid.

这四个词都可用于描述与付款到期或逾期有关的状态，但语气和正式程度不同：due最常见、语气中性；overdue强调已经超过截止日期；delinquent更正式、多用于金融或法律语境；payable则强调必须支付，常见于合同或账单用语。这里不比较due表示“预期到达／发生”（如the train is due at six）的用法。