We found 20 dictionaries that define the word date line:

General (17 matching dictionaries)

1. Date line, date line: Merriam-Webster
2. Date Line: Oxford Learner's Dictionaries
3. date line: American Heritage Dictionary of the English Language
4. date line: Collins English Dictionary
5. date line: Vocabulary.com
6. Date Line: Wordnik
7. Date Line: Wiktionary
8. date line: The Wordsmyth English Dictionary-Thesaurus
9. date line: Dictionary.com
10. Date line: Wikipedia, the Free Encyclopedia
11. date line: Rhymezone
12. date line: FreeDictionary.org
13. date line: Mnemonic Dictionary
14. date line: TheFreeDictionary.com
15. date line: Longman Dictionary of Contemporary English

Art (1 matching dictionary)

16. ODLIS: Online Dictionary of Library and Information Science (No longer online)

Computing (1 matching dictionary)

17. date line: Encyclopedia

Science (1 matching dictionary)

18. From Stargazers to Starships Glossary (No longer online)

(Note: See date_lines as well.)

Definitions from Wiktionary (Date Line) ▸ noun:  synonym of International Date Line Similar: dateline, International Date Line, X-Day, datum, Davis Line, today, civil day, calendar day, term day, D-Day, more... Opposite: prime meridian, Greenwich meridian Phrases: International Date Line, the international date line, the date line, more... ▸ Words similar to date line ▸ Usage examples for date line ▸ Idioms related to date line ▸ Wikipedia articles (New!) ▸ Words that often appear near date line ▸ Rhymes of date line ▸ Invented words related to date line