We found 23 dictionaries that define the word fall back:

General (16 matching dictionaries)

1. fall back: Merriam-Webster
2. fall back: Oxford Learner's Dictionaries
3. fall back: Collins English Dictionary
4. fall back: Vocabulary.com
5. fall-back: Wordnik
6. fall back: Cambridge Advanced Learner's Dictionary
7. fall-back, fall back: Wiktionary
8. fall-back, fall back: Dictionary.com
9. fall back: Rhymezone
10. fall-back: AllWords.com Multi-Lingual Dictionary
11. fall back: FreeDictionary.org
12. fall back: Mnemonic Dictionary
13. fall back: TheFreeDictionary.com
14. fall back: Longman Dictionary of Contemporary English

Business (1 matching dictionary)

15. fall back: Legal dictionary

Computing (3 matching dictionaries)

16. fall back: Free On-line Dictionary of Computing
17. fall back: CCI Computer
18. fall back: Encyclopedia

Medicine (1 matching dictionary)

19. online medical dictionary (No longer online)

Miscellaneous (1 matching dictionary)

20. fall back: Idioms

Sports (1 matching dictionary)

21. Fall-back: Sports Definitions

(Note: See fall_backs as well.)

Definitions from Wiktionary (fall back) ▸ verb:  Used other than figuratively or idiomatically: see fall, back. ▸ verb:  To retreat. ▸ verb:  To fail to fulfill a promise or purpose. ▸ verb:  To turn the clocks back for daylight saving time. Similar: fall behind, lapse, drop off, lose, dawdle, lag, retire, recede, retrogress, regress, more... Types: reserve, spare, alternative, backup, more... Phrases: fall back on, fall back upon, to fall back, to fall back upon, fall back and forward, more... Adjectives: flat out, stay at home, next level, cut down, frontside, close to the wind, far out, each way, every second, up in the air, not out ▸ Words similar to fall back ▸ Usage examples for fall back ▸ Idioms related to fall back ▸ Wikipedia articles (New!) ▸ Words that often appear near fall back ▸ Rhymes of fall back ▸ Invented words related to fall back