• "Jack worked with a will."
    "Jack worked with a will."
  • WordNet 3.6
    • n jacks a game in which jackstones are thrown and picked up in various groups between bounces of a small rubber ball
    • ***

Additional illustrations & photos:

A Sorting Jack A Sorting Jack
Jack and the lion are reunited Jack and the lion are reunited
Jack be nimble Jack be nimble
Little Jack Horner music Little Jack Horner music


  • Napoleon Hill
    “The jack-of-all-trades seldom is good at any. Concentrate all of your efforts on one definite chief aim.”
  • A. A. Milne
    A. A. Milne
    “No doubt Jack the Ripper excused himself on the grounds that it was human nature.”
  • Benicio Del Toro
    Benicio Del Toro
    “I'm not Jack Nicholson. I'm not Brando. But I do mumble.”
  • German Proverb
    German Proverb
    “What little Jack does not learn, big John will never.”
  • Proverb
    “A jack of both sides, is before long, trusted by nobody, and abused by both parties.”
  • Source Unknown
    Source Unknown
    “All work and no play makes Jack a dull boy, and Jill a wealthy widow.”


Before you can say Jack Robinson - The term Jack Robinson represents 'a short amount of time'. When you do something before you can say Jack Robinson, you do it very quickly.
Every man jack - If every man jack was involved in something, it is an emphatic way of saying that absolutely everybody was involved.
Jack Frost - If everything has frozen in winter, then Jack Frost has visited.
Jack the Lad - A confident and not very serious young man who behaves as he wants to without thinking about other people is a Jack the Lad.
Jack-of-all-trades - A jack-of-all-trades is someone that can do many different jobs.


In literature:

Jack looked at Adair, and Adair looked at Jack, to read each other's feelings in their countenances.
"The Three Midshipmen" by W.H.G. Kingston
If Jack was driving it, she would at once tell him what had happened; but Jack was not likely to be driving at that snail pace.
"Bristol Bells" by Emma Marshall
He had done more for Jack than Jack for him.
"Slow and Sure" by Horatio Alger
Better feel a bit sorry for Jack Odin too.
"Hunters Out of Space" by Joseph Everidge Kelleam
The next day Jack Sawtooth showed up, tired out, fresh from the wilderness.
"The Rogue Elephant" by Elliott Whitney
He talked often with Jack Cockrell to whom he had taken a strong fancy, and pressed the lad to dine with him.
"Blackbeard: Buccaneer" by Ralph D. Paine
Somewhat reluctantly Mr. Orr took the blankets and threw them over Jack's head, and on the run Jack plunged into the wall of smoke.
"The Young Railroaders" by Francis Lovell Coombs
Any more of you, Jack?
"The Motor Girls on Crystal Bay" by Margaret Penrose
He used to take Jack and Roy out on the river and to the baths, where he taught them both to swim.
"Fifty-Two Stories For Girls" by Various
He read Jack's inspiration from end to end, in spite of all that Jack could do.
"As We Sweep Through The Deep" by Gordon Stables
All these tidings came to us from Jack, and Jack was in this instance somewhat led astray.
"The Fixed Period" by Anthony Trollope
Why, Jack, is that you?
"Select Temperance Tracts" by American Tract Society
Spoase some people do call me Cap'n Jack Truscott, or spoase others do call me Jack Fraddam, what do I care?
"The Birthright" by Joseph Hocking
The sound that Dick and Jack had heard in the cave was not thunder, as Jack had suggested, but something entirely different.
"The Hilltop Boys" by Cyril Burleigh
As for Jack, he is not assistance to anybody; but I consider you very like your mother, Frank.
"The Perpetual Curate" by Mrs [Margaret] Oliphant
Jack Harvey stood at the foot of the companionway, for a moment, looking into the cabin, before he entered.
"Jack Harvey's Adventures" by Ruel Perley Smith
And that son, Jack Kingsley, is the lad who is the hero of this story.
"Indian and Scout" by F. S. Brereton
Jack showed generalship, too.
"In League with Israel" by Annie F. Johnston
He descended into the cockpit and shook hands with Jack Harvey and Henry Burns.
"The Rival Campers Afloat" by Ruel Perley Smith
But David takes after Jack.
"Dodo Wonders" by E. F. Benson

In poetry:

I might still prove to you, Jack of the Tules
Shames not our teaching; nay, even might show you,
Hard by this spot, his old comrade, who, wounded,
Lives on his bounty.
"Jack Of The Tules" by Francis Bret Harte
Little boys, sit still--
Girls, too, if you will--
And let me tell you of Jack and Jill;
For I think another
Such sister and brother
Were never the children of one mother!
"Jack And Jill" by Clara Doty Bates
But he once got a fear, though, that shook him with pain,
Like sleepers beneath the weight of a train.
I remember the story well, for, you see,
His stoker, Jack Martin, told it to me.
"Nottman" by Alexander Anderson
And at last they gave a shout of delight
When they saw their camp fire burning bright,
Which was to them a cheerful sight,
And they caressed Old Jack for guiding them home that night.
"Lost on the Prairie" by William Topaz McGonagall
"A'a, Jack," he sed, "aw'm cap't wi' thee
Net knowin sich a chap as me;
For oft when tha's been on a spree,
Aw've been thear too;
But tho' aw've reckon'd safe o' thee,
Tha's just edged throo.
"A Strange Stooary" by John Hartley
Now, stockman, if ever on some future day
After the wild mob you happen to stray,
Tread softly where wattles their sweet fragrance spread,
Where alone and neglected poor Jack's bones are laid.
"The Stockman's Last Bed" by Anonymous Oceania

In news:

Jack and the Beanstalk .
You've Heard Of Jack And The Beanstalk – How About Jack And The Ballpit.
Jack is a little guy whose life revolves around his little collection of rubber balls.
Joseph Sullivan, of the Aberdeen Wings, takes a shot on goal ahead of Jack McCartan, of the Coulee Region Chill, left, during Friday night's game at the Odde Ice Center.
Jack Kerouac shot to fame after his jazz- and drug-infused book, On the Road, hit stores in 1957.
Jack Kerouac's Lost ' Beat Generation ' Play Premieres.
Christopher James Webb, Ari Butler, Tony Crane, and William Connell in MRT and UMass Lowell's production of ' Beat Generation ' by Jack Kerouac.
Jack Kerouac by photographer Tom Palumbo, circa 1956 (Wikipedia Commons).
Jack Link's Beef Jerky supports Hulu Plus launch on Xbox Live.
To celebrate the launch of Hulu Plus on Xbox Live, Jack Link's Beef Jerky will offer all Xbox Live members one free week of Hulu Plus services.
Jack Link's Beefy Jerky said its new Sasquatch Big Steak boasts more than 16 in.
Jack Link (right), CEO of Links Snacks Inc, and his son and company president, Troy Link, are caught up in a court battle with son and brother Jay Link over the family business.
Photo courtesy of Jack Links.
Our friends at Jack Links, a Wisconsin Company has pulled out all the stops to celebrate.
INTERVIEWS Jack White, Weeknd, Justice, Die Antwoord: Your First Believable Lollapalooza Rumor.

In science:

Fulman, J., Stein’s method, Jack measure, and the Metropolis algorithm, J.
Commutation relations and Markov chains
Cλ are proportional to Jack polynomials corresponding to the partition λ; for details see Muirhead and Adler-van Moerbeke .
Random and Integrable Models in Mathematics and Physics
Kaneko : Selberg integrals and hypergeometric functions associated with Jack polynomials SIAM J.
Random and Integrable Models in Mathematics and Physics
Connection coefficients, matchings, maps and combinatorial conjectures for Jack symmetric functions.
Duality of real and quaternionic random matrices
In Hypergeometric functions on domains of positivity, Jack polynomials, and applications (Tampa, FL, 1991), vol. 138 of Contemp.
Duality of real and quaternionic random matrices
It was shown in [8, 9] that, for r − 1 and k + 1 relative prime, these polynomials are Jack polynomials, with parameter α = − k+1 r−1 and labeled by a partition λ, which is related to the orbital occupation number of the bosons (see below).
Domain walls, fusion rules and conformal field theory in the quantum Hall regime
Some combinatorial properties of Jack symmetric functions.
Random matrices with external source and KP $\tau$ functions
Suppose a random partition λ is distributed according to the Jack measure, which is a deformation of the Plancherel measure with a positive parameter α > 0.
Jack deformations of Plancherel measures and traceless Gaussian random matrices
Jack measure with parameter α = 2 and α = 1/2 as a discrete analogue of the GOE and GSE matrix, respectively.
Jack deformations of Plancherel measures and traceless Gaussian random matrices
More generally, for any positive real number β > 0, the Jack measure with α = 2/β is the counterpart of the Gaussian β -ensemble (GβE) with the probability density function proportional to (1.2).
Jack deformations of Plancherel measures and traceless Gaussian random matrices
We are interested in finding out an explicit connection between Jack measures and the GβE.
Jack deformations of Plancherel measures and traceless Gaussian random matrices
Our goal in the present paper is to extend ´Sniady’s result to Jack measures with any parameter α.
Jack deformations of Plancherel measures and traceless Gaussian random matrices
The terminology “Jack measure” is derived from Jack polynomials ([Mac, VI.10]).
Jack deformations of Plancherel measures and traceless Gaussian random matrices
Cn,d (α) = Xµ∈Pn (d) By the definition (2.2) of the Jack measure, Cn,d (α) = (αnn!)−1 if d ≥ n.
Jack deformations of Plancherel measures and traceless Gaussian random matrices
Jack deformations of Plancherel measures r+1 ), whose volume is q d for all n.
Jack deformations of Plancherel measures and traceless Gaussian random matrices