dateline

/ˌdeɪtˈlaɪn/

/ˈdeɪtlaɪn/

Other forms: datelined; datelines; datelining

Definitions of dateline

1. noun

   an imaginary line on the surface of the earth following (approximately) the 180th meridian
   synonyms: International Date Line, date line

   example of:

   line of longitude, meridian

   an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator
2. noun

   a line at the beginning of a news article giving the date and place of origin of the news dispatch
   type of:

   line

   text consisting of a row of words written across a page or computer screen
3. verb

   mark with a date and place
   “dateline a newspaper article”

   synonyms: date-mark, datemark

   type of:

   date

   provide with a dateline; mark with a date