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

 

acumen

 noun
noun
BrE BrE//ˈækjəmən//
 
; NAmE NAmE//ˈækjəmən//
 
; BrE BrE//əˈkjuːmən//
 
; NAmE NAmE//əˈkjuːmən//
 
[uncountable]
 
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the ability to understand and decide things quickly and well business/commercial/financial acumen He had demonstrated considerable business acumen. She has great financial acumen. Word Origin late 16th cent.: from Latin, ‘sharpness, point’, from acuere ‘sharpen’ from acus ‘needle’.
See the Oxford Advanced American Dictionary entry: acumen