1. To move back and forth or from side to side, especially gently or rhythmically. 2. To sway violently, as from a blow or shock. See synonyms at swing. 3. To be washed and panned in a cradle or in a rocker. Used of ores. 4.Music To play or dance to rock 'n' roll.
TRANSITIVE VERB:
1. To move back and forth or from side to side, especially in order to soothe or lull to sleep. 2. To cause to shake or sway violently. See synonyms at agitate. 3. To disturb the mental or emotional equilibrium of; upset: News of the scandal rocked the town.4. To wash or pan (ore) in a cradle or rocker. 5. In mezzotint engraving, to roughen (a metal plate) with a rocker or roulette.
NOUN:
1a. A rocking motion. b. The act of rocking. 2.Music Rock 'n' roll.
IDIOM:
rock the boatSlang To disturb the balance or routine of a situation: He has an easygoing managerial style and won't rock the boat unless absolutely necessary.