dateline has definitions from the fields of linguistics,writing,news,geography
1
[ noun ] (geography) an imaginary line on the surface of the earth following (approximately) the 180th meridian

Related terms

meridian

2
[ verb ] mark with a date, and often with a place, to, as of a newspaper article or a letter

Synonyms

date-mark datemark

Related terms

date

3
[ noun ] (linguistics,writing,news) a line at the beginning of a news article giving the date and place of origin of the news dispatch

Related terms

line dispatch

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