English

Definition of fallback noun from the Oxford Advanced Learner's Dictionary

 

fallback

 noun
noun
BrE BrE//ˈfɔːlbæk//
 
; NAmE NAmE//ˈfɔːlbæk//
 
 
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a plan or course of action that is ready to be used in an emergency if other things fail What's our fallback if they don't come up with the money? We need a fallback position if they won't do the job.
See the Oxford Advanced American Dictionary entry: fallback