'dateline' definitions:

Definition of 'dateline'

(from WordNet)
noun
An imaginary line on the surface of the earth following (approximately) the 180th meridian [syn: dateline, date line, International Date Line]
noun
A line at the beginning of a news article giving the date and place of origin of the news dispatch
verb
Mark with a date and place; "dateline a newspaper article" [syn: dateline, datemark, date-mark]