Definition of shaking noun from the Oxford Advanced American Dictionary

 

shaking

 noun
noun
NAmE//ˈʃeɪkɪŋ//
 
[singular, uncountable]
 
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the act of shaking something or someone or the fact of being shaken Even a slight shaking can damage a baby's brain. There was a lot of sighing and shaking of heads.
See the Oxford Advanced Learner's Dictionary entry: shaking