date line

1. 1.

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

   SynonymsdatelineInternational Date Line

   Broadermeridian

Questions about date line

What does date line mean?

date line means "an imaginary line on the surface of the earth following (approximately) the 180th meridian".

What is another word for date line?

Close synonyms include dateline, International Date Line. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is date line a common word?

date line is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.