dog(dôg, dog),USA pronunciationn., v.,dogged, dog•ging. n.
a domesticated canid, Canis familiaris, bred in many varieties.
Mammalsany carnivore of the dogfamily Canidae, having prominent canine teeth and, in the wild state, a long and slender muzzle, a deep-chested muscular body, a bushy tail, and large, erect ears. Cf. canid.
the male of such an animal.
any of various animals resembling a dog.
a despicable man or youth.
Informal Termsa fellow in general:a lucky dog.
Slang Termsdogs, feet.
Slang Terms
something worthless or of extremely poor quality:That used car you bought is a dog.
an utter failure; flop:Critics say his new play is a dog.
[Slang.]an ugly, boring, or crude person.
[Slang.]See hot dog.
Slang Terms(cap.) [Astron.]either of two constellations, Canis Major or Canis Minor.
[Mach.]
Mechanical Engineeringany of various mechanical devices, as for gripping or holding something.
Mechanical Engineeringa projection on a moving part for moving steadily or for tripping another part with which it engages.
MetallurgyAlso called gripper, nipper. a device on a drawbench for drawing the work through the die.
a cramp binding together two timbers.
Mechanical Engineeringan iron bar driven into a stone or timber to provide a means of lifting it.
an andiron; firedog.
Meteorologya sundog or fogdog.
Telecommunicationsa word formerly used in communications to represent the letter D.
Idiomsgo to the dogs, [Informal.]to deteriorate; degenerate morally or physically:This neighborhood is going to the dogs.
Idiomslead a dog's life, to have an unhappy or harassed existence:He maintained that he led a dog's life in the army.
Idiomslet sleeping dogs lie, to refrain from action that would alter an existing situation for fear of causing greater problems or complexities.
Idiomsput on the dog, [Informal.]to assume an attitude of wealth or importance; put on airs.
v.t.
to follow or track like a dog, esp. with hostile intent; hound.
to drive or chase with a dog or dogs.
[Mach.]to fasten with dogs.
dog it, [Informal.]
to shirk one's responsibility; loaf on the job.
to retreat, flee, renege, etc.:a sponsor who dogged it when needed most.