international date line international court of justice • international development association · · · Info · Definitions · Synonyms · Characters · · international date line · · Text Common · · Latin · · Scripts 23 · · Length 7 · · Syllables Definitions · · · (noun) an imaginary line on the surface of the earth following (approximately) the 180th meridian. Synonyms: dateline, date line, International Date Line. · · Noun Definition 1 Synonyms · · · dateline · · Synonym 1 date line · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074