To move gently back and forth or from side to side. She rocked the baby to sleep in her arms.
To cause to shake or sway violently. The earthquake rocked the entire city.
To perform or play music with a strong beat, typically in the style of rock and roll. The band rocked the stage with their energetic performance.
To impress or excite greatly. Her new outfit really rocks!
(Informal) To wear, display, or use (something) with confidence and style. She's really rocking that new leather jacket.