1. (noun) an imaginary line on the surface of the earth following (approximately) the 180th meridian

• date line
• international date line

2. (verb) mark with a date and place

• date-mark
• datemark

1. (noun) a line at the beginning of a news article giving the date and place of origin of the news dispatch

• line

2. (verb) mark with a date and place

• date

1. (noun) a line at the beginning of a news article giving the date and place of origin of the news dispatch

• date-mark
• datemark