a heavy object attached to a cable or chain and used to moor a ship to the sea bottom, typically having a metal shank with a pair of curved, barbed flukes at one end

the boat, no longer held fast by its anchor, swung wildly

an anchor chain

an anchorman or anchorwoman

he signed off after nineteen years as CBS news anchor

moor (a ship) to the sea bottom with an anchor

the ship was anchored in the lee of the island

we anchored in the harbour

present and coordinate (a television or radio programme)

she anchored a television documentary series in the early 1980s