1. (n.) In a steamship, a cock or valve close to the vessel's side, for closing a pipe which communicates with the sea.

2. (n.) The black-bellied plover.

3. (n.) A gurnard, as the European red gurnard (Trigla pini).

ball cock ball valve bung bunghole check valve cock cork drain cock draw cock faucet gate lid needle valve peg petcock pin plug spigot spike spile spill stop stopcock stopgap stopper stopple tap valve valvula valvule