This is the 8773rd most frequent Russian word.
подергивание
Twitching or jerking.
The word 'подергивание' is used to describe an involuntary muscle spasm or twitching here.
Во время интервью у него было заметное подергивание мышц лица.
During the interview, he had noticeable twitching of facial muscles.
Here, 'подергивание' refers to the act of plucking or pulling the string slightly to produce a sound.
Подергивание струны на гитаре создает необычный эффект в музыке.
Plucking a string on a guitar creates an unusual effect in music.
In this case, 'подергивание' again signifies an involuntary movement, related to a nervous reaction.