shaking
n. C / U A2 Elementary US //ˈʃeɪkɪŋ// UK //ʃˈeɪkɪŋ// shak·ing
n. the act of moving something quickly up and down or from side to side. You might feel this during an earthquake or when you are very cold or nervous.
n. the act or instance of vibrating or moving with short, quick, irregular motions. Often associated with physical instability, emotional distress, or seismic activity.
The sudden shaking of the ground scared everyone.
After the long hike in the rain, the dog gave its fur a vigorous shaking to get dry.
The violent shaking of the aircraft during the storm caused several overhead bins to pop open, though the pilot eventually regained control and landed safely.
Usage
Often used in the singular with 'a' to describe a specific event, or as an uncountable gerund-noun to describe a continuous state.