Possible Definitions:
1. Clock (n.) A machine for measuring time, indicating the hour and other divisions by means of hands moving on a dial plate. Its works are moved by a weight or a spring, and it is often so constructed as to tell the hour by the stroke of a hammer on a bell. It is not adapted, like the watch, to be carried on the person.
2. Clock (n.) A watch, esp. one that strikes.
3. Clock (n.) The striking of a clock.
4. Clock (n.) A figure or figured work on the ankle or side of a stocking.
5. Clock (v. t.) To ornament with figured work, as the side of a stocking.
6. Clock (n.) A large beetle, esp. the European dung beetle (Scarabaeus stercorarius).