noun
: a postal receipt sent back to the sender of a piece of insured or registered mail on payment of a special fee that shows to whom and at what time the mail was delivered
noun
: a postal receipt sent back to the sender of a piece of insured or registered mail on payment of a special fee that shows to whom and at what time the mail was delivered
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012