1. A heavy weight, usually equipped with hooks or barbs, designed to be dropped by a rope from a boat, preventing the vessel from moving; SYN. ground tackle.
2. A central cohesive source of support and stability:; SYN. mainstay, backbone, linchpin, lynchpin.
3. A television reporter who coordinates a broadcast to which several correspondents contribute; SYN. anchorman, anchorperson.
4. (Computers) A symbol or mark used to indicate the spot to which a hyperlink is to be connected.