There are several synonyms for the word "shook" that can be used to describe the action of trembling or shaking something. Some of the common synonyms include jolt, vibrate, quiver, shudder, twitch, and tremble. Each of these words carries a slightly different connotation, but all imply some sort of movement or instability. Additionally, there are synonyms for "shook" that relate to the emotional or mental state of an individual, such as startled or stunned. Overall, these synonyms provide a variety of ways to describe the physical and emotional act of shaking or being shaken.