convulsed

"The yoga instructor guided us through a series of back contortions to improve flexibility. "

"The comedian made everyone laugh at the school talent show. "

"The wind blew the door shut violently, making everyone jump. "

"Their loud laughter betrayed their presence."

"The student's tears were involuntary; she couldn't help crying when she saw the sad movie. "

"The violent assaulted the student in the school hallway. "

"Be careful not to trip on the tree roots."

"We joined the audience just as the lights went down."

"a horse that startles easily"

"The factory is producing thousands of cars every month. "

"He was greatly agitated by the news."

"The muscle contraction during exercise resulted in a temporary reduction in the size of the arm. "