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

 

fillip

 noun
noun
BrE BrE//ˈfɪlɪp//
 
; NAmE NAmE//ˈfɪlɪp//
 
 
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[singular] a fillip (to/for something) (formal) a thing or person that causes something to improve suddenly synonym boost A drop in interest rates gave a welcome fillip to the housing market. Word Origin late Middle English (in the sense ‘make a fillip with the fingers’): symbolic; compare with flick, flip.
See the Oxford Advanced American Dictionary entry: fillip