rock

n.

  1. See Roc.
  2. A distaff used in spinning; the staff or frame about which flax is arranged, and from which the thread is drawn in spinning.
  3. A large concreted mass of stony material; a large fixed stone or crag. See Stone.
  4. Any natural deposit forming a part of the earth's crust, whether consolidated or not, including sand, earth, clay, etc., when in natural beds.
  5. That which resembles a rock in firmness; a defense; a support; a refuge.
  6. Fig.: Anything which causes a disaster or wreck resembling the wreck of a vessel upon a rock.
  7. The striped bass. See under Bass.

v. t.

  1. 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.
  2. To move as in a cradle; hence, to put to sleep by rocking; to still; to quiet.

v. i.

  1. To move or be moved backward and forward; to be violently agitated; to reel; to totter.
  2. To roll or saway backward and forward upon a support; as, to rock in a rocking-chair.