Definition of rock

• n. - See Roc.
• n. - A distaff used in spinning; the staff or frame about which flax is arranged, and from which the thread is drawn in spinning.
• n. - A large concreted mass of stony material; a large fixed stone or crag. See Stone.
• n. - Any natural deposit forming a part of the earth's crust, whether consolidated or not, including sand, earth, clay, etc., when in natural beds.
• n. - That which resembles a rock in firmness; a defense; a support; a refuge.
• n. - Fig.: Anything which causes a disaster or wreck resembling the wreck of a vessel upon a rock.
• n. - The striped bass. See under Bass.
• v. t. - To cause to sway backward and forward, as a body resting on a support beneath; as, to rock a cradle or chair; to cause to vibrate; to cause to reel or totter.
• v. t. - To move as in a cradle; hence, to put to sleep by rocking; to still; to quiet.
• v. i. - To move or be moved backward and forward; to be violently agitated; to reel; to totter.
• v. i. - To roll or saway backward and forward upon a support; as, to rock in a rocking-chair.