dateline /ˈdeɪtlaɪn/noun 1verb 1forms 3 noun1 •A line at the beginning of a document (such as a newspaper article) stating the place of origin and typically the date, and often written in capital letters.Other bits of furniture include the dateline, which says where a journalist is reporting from – historically with the date of dispatch, eg “Buenos Aires, 1 March.” — 2023 verb1 •To attach a dateline to a particular document.He datelined the entry: "Oxford Mississippi, 27 January, 1926." — 1993 formsdatelined · datelining · datelines