the date by or on which something is expected, especially the payment of a bill or the birth of a baby (尤指欠款的)到期日,满期日 If payment is not made by the due date, 10% will be added to the bill. 如果到期不付款,还款金额将增加 10%。 When's your due date? (= When is your baby expected?) 你预产期是什么时候?(=你的孩子什么时候出生? The baby was born exactly on its due date. 婴儿就在预产期那一天出生了。