A dog that is used to test another dog's fighting instinct. The "bait" is mauled or killed in the process.

(idiomatic) To decline or deteriorate shockingly.

A cross between a coyote and a wild or domestic dog.

The metal frame in a fireplace, used to hold the logs, or to support the poker and other tools.

A carnivorous European mollusc, Nucella lapillus, found on rocky coasts.

(informal) A period of time in the life of dogs, defined such that the average life expectancy of a dog in "dog years" is numerically equivalent to the average life expectancy of a human. A 4- and a 5-year-old dog are about as mature as a human of 28 to 30 years and 33 to 35 years, respectively. The most common calcuation uses a ratio of seven dog years to one human year.

A high-pitched whistle, inaudible to humans, used to train dogs. / (figuratively) That which is understood only by a narrow demographic.

(astronomy) A bluish-white star in the constellation Canis Major; Alpha (α) Canis Majoris A. A vertex of the Winter Triangle and the brightest star in the night sky. It is actually a binary star with a white dwarf companion star.

A dog, especially a pointer, used in shooting to retrieve the dead birds. / A tout. / A person who seeks out real estate investment opportunities in exchange for a fee.

(intransitive) To watch closely. / (transitive) To seek out. / (aviation, military, slang) A multiservice tactical brevity code requesting configuration of sensors.