We found 12 dictionaries that define the word time and time again:

General (8 matching dictionaries)

1. time and time again: Vocabulary.com
2. time and time again: Wiktionary
3. time and time again: Dictionary.com
4. Time and Time Again (album), Time and Time Again: Wikipedia, the Free Encyclopedia
5. time and time again: Rhymezone
6. time and time again: FreeDictionary.org
7. time and time again: Mnemonic Dictionary
8. time and time again: TheFreeDictionary.com

Business (1 matching dictionary)

9. time and time again: Legal dictionary

Computing (1 matching dictionary)

10. time and time again: Encyclopedia

Medicine (1 matching dictionary)

11. time and time again: Medical dictionary

Miscellaneous (1 matching dictionary)

12. time and time again: Idioms

Definitions from Wiktionary (time and time again) ▸ adverb:  Often; repeatedly. Similar: time and again, over and over again, over and over, again and again, ever and again, time after time, repeatedly, many a time and oft, all over again, continually, more... Opposite: never, rarely, infrequently, seldom ▸ Words similar to time and time again ▸ Usage examples for time and time again ▸ Idioms related to time and time again ▸ Wikipedia articles (New!) ▸ Words that often appear near time and time again ▸ Rhymes of time and time again ▸ Invented words related to time and time again