from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A domesticated carnivorous mammal (Canis familiaris syn. Canis lupus subsp. familiaris) occurring as a wide variety of breeds, many of which are traditionally used for hunting, herding, drawing sleds, and other tasks, and are kept as pets.
  • noun Any of various carnivorous mammals of the family Canidae, such as the dingo.
  • noun A male animal of the family Canidae, especially of a fox or a domesticated breed.
  • noun Any of various other animals, such as the prairie dog.
  • noun A person.
  • noun A person regarded as contemptible.
  • noun A person regarded as unattractive or uninteresting.
  • noun Something of inferior or low quality.
  • noun An investment that produces a low return or a loss.
  • noun Slang The feet.
  • noun Slang A hot dog; a wiener.
  • noun Any of various hooked or U-shaped metallic devices used for gripping or holding heavy objects.
  • noun Astronomy A sundog.
  • adverb Totally; completely. Often used in combination.
  • transitive verb To track or trail persistently.
  • transitive verb To hold or fasten with a mechanical device.
  • transitive verb To be persistently or inescapably associated with:
  • transitive verb To be recurrently or persistently in the mind; haunt.
  • idiom (dog it) To fail to expend the effort needed to do or accomplish something.
  • idiom (go to the dogs) To go to ruin; degenerate.
  • idiom (put on the dog) To make an ostentatious display of elegance, wealth, or culture.

from The Century Dictionary.

  • noun A short, heavy piece of steel, bent and pointed at one end and with an eye or ring at the other. It is used for many purposes in logging, and is sometimes so shaped that a blow directly against the line of draft will loosen it. Also called tail-hook.
  • noun In agriculture, an implement for dragging brush, roots, and poles out of the ground; a brush-puller.
  • To follow like a dog; follow with or as with dogs, as in hunting with dogs; hunt; follow pertinaciously or maliciously; keep at the heels of; worry with importunity: as, to dog deer; to dog a person's footsteps.
  • To fasten, as a log by means of a dog (see dog, n., 9 ), for sawing.
  • Nautical, to grip, as a rope, to a spar or cable so that the parts bind on each other, to prevent slipping, and causing it to cling.
  • noun A quadruped of the genus Canis, C. familiaris.
  • noun In distinguishing sex, a male dog, as opposed to bitch; hence sometimes used in composition for the male of other animals, as in dog-fox, dog-ape.
  • noun plural Canine quadrupeds in general; the family Canidœ (which see).
  • noun The prairie-dog.
  • noun The dogfish.
  • noun A mean, worthless fellow; a currish or sneaking scoundrel: applied in reproach or contempt.
  • noun A gay or rakish man, especially if young; a sport or gallant: applied, usually with an epithet (young, impudent, etc.), in mild or humorous reprobation.
  • noun In astronomy: [capitalized] One of two ancient constellations lying south of the zodiac, known as Canis Major and Canis Minor. See Canis.
  • noun The dog-star.
  • noun A name of various mechanical devices, tools, and pieces of machinery.
  • noun Same as dog-head, 1.
  • noun A sort of iron hook or bar, with one or more sharp fangs or claws at one end, which may be fastened into a piece of wood or other heavy article, for the purpose of moving it: used with various specific prefixes, See cut.
  • noun An iron with fangs for fastening a log in a saw-pit or on the carriage of a saw-mill.
  • noun Any part of a machine acting as a claw or clutch, as the carrier of a lathe, or an adjustable stop to change the motion of a machine-tool.
  • noun plural The set-screws which adjust the bed-tool of a punching-press.
  • noun A grappling-iron which lifts the monkey or hammer of a pile-driver.
  • noun A click or pallet to restrain the back-action of a ratchet-wheel by engaging the teeth; a pawl.
  • noun plural In ship-building, the final supports which are knocked aside when a ship is launched; a dogshore.
  • noun In a lock, a tooth, projection, tusk, or jag which acts as a detent.
  • noun A grab used to grasp well-tubes or -tools, to withdraw them from bored, drilled, or driven wells.


from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English dogge, from Old English docga.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Middle English dogge, from Old English docga ("hound, powerful breed of dog"), a pet-form diminutive of Old English *docce (“muscle”) (found in compound fingerdocce ("finger-muscle") with suffix -ga (compare frocga ("frog"), picga ("pig")), from Proto-Germanic *dukkōn (“power, strength, muscle”). More at dock. In the 16th century, it superseded Old English hund and was adopted by many continental European languages.


  • To illustrate, consider a sentence like ˜A dog barked™, and suppose that ˜dog™ denotes the set X,


  • For example, in ˜Every dog is a mammal™, both ˜dog™ and ˜mammal™ have personal supposition.

    William of Ockham

  • We had a dog, true it was a different one, a ferocious dog…

    The Making of Mr. Putin

  • At the present time, there is not a concert or an opera at Darmstadt to which Mr. S---- and his wonderful dog are not invited; or, at least, _the dog_.

    Anecdotes of Dogs

  • It's where a dog can be a dog®, and is designed to provide the highest levels of fun, safety and service for campers, and peace of mind for their parents.

  • "'Well, no,' admitted Sykes; 'I see plenty of pieces, but I guess that dog _as a dog_, ain't of much account.'

    The Lincoln Story Book

  • The term "dog days" was coined by the ancient Romans, who called these hot and humid days caniculares dies or "days of the dogs" after the star Sirius -- Canis Majoris, the "Greater Dog," which is one of the hunting dogs of Orion.

    The Full Feed from

  • "This is the reason the term dog days of August was invented," said analyst Paul Dergarabedian.

    Yahoo! News: Business - Opinion

  • He is demonstrating abstract thinking when he assigns the word dog to what is clearly not a real dog.

    Testing for Kindergarten

  • He is demonstrating abstract thinking when he assigns the word dog to what is clearly not a real dog.

    Testing for Kindergarten


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  • The reason that a dog has so many friends is that he wags his tail instead of his tongue...

    December 24, 2006

  • A parsing challenge: "Dogs dogs dog dog dogs."

    September 9, 2007

  • God in reverse.

    November 3, 2007

  • "Outside of a dog, a book is a man's best friend. Inside of a dog it's too dark to read."

    - Groucho Marx.

    December 24, 2007

  • April 22, 2008

  • "And tell the chef that this is low grade dog food."



    October 15, 2008

  • Translation: chick peas. See bean dog.

    October 15, 2008

  • Au contraire, Cisco. Bean dog, not dog, not chickpeas.

    (I take my little monkey dog very seriously. I'm a mama bear, remember.)

    October 15, 2008

  • I was referring to the previous comment, not your Integrated Legume Processing Unit.

    October 15, 2008

  • *rowwrr*

    October 16, 2008