The word **剧烈 (jùliè)**, meaning "violent," "intense," or "acute," is a compound formed by combining two characters with closely related meanings to amplify and specify a sense of extreme force. The first character, **剧 (jù)**, carries connotations of severe, intense, or extreme, often used in contexts like drama (戏剧) or acute pain (剧痛). The second character, **烈 (liè)**, means fierce, strong, or violent, as in fire (烈火) or vehement (猛烈). Together, they form a complementary binomial compound where each element reinforces the other, creating a unified concept of powerful, forceful, and often violent intensity, typically used to describe actions, changes, or sensations like *violent motion* (剧烈运动) or *acute pain* (剧烈疼痛).