a heavy object dropped from a boat to make it stay in one place
When the ship reached its destination, the crew dropped the anchor.
The captain instructed the crew to lower the anchor to secure the ship's position in the harbor.
When the storm hit, the sailors were grateful for the strong anchor that kept their vessel from drifting in the turbulent waters.
After a day of fishing, they dropped the anchor to enjoy a peaceful evening on the calm waters of the lake.