›to move something or cause something to move backward and forward or from side to side: [T]He rocked the baby to sleep.[I]If you rock back on that chair, you’re going to break it.›If a building or area rocks, it shakes it violently: [T]An earthquake rocked the downtown area today.›If a person or place is rocked, it is surprised, upset, or excited: [T]The university was rocked by the scandal.