ˌcertified ˈmail BrE AmE noun [uncountable]
American English a way of sending post in which someone records that you have sent it, and the person it is sent to must sign their name to prove they have received it
ˌcertified ˈmail BrE AmE noun [uncountable]
American English a way of sending post in which someone records that you have sent it, and the person it is sent to must sign their name to prove they have received it
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012