Jump To:

• j
  j

  a unit vector on the y-axis of a coordinate system.
• J
  J

  noun

  the tenth letter of the English alphabet, a consonant.
• J.
  J.

  abbreviation

  Jack.

j

¹ American  

Symbol.

1. Mathematics. a unit vector on the y-axis of a coordinate system.

2. Engineering. the imaginary number .

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J ² American  

[jay] / dʒeɪ /

Or j

noun

• J's,
  plural
• Js,
  plural
• j's,
  plural
• js
  plural

1. the tenth letter of the English alphabet, a consonant.

2. any spoken sound represented by the letter J or j, as in just, major, or rajah.

3. something having the shape of a J .

4. a written or printed representation of the letter J or j.

5. a device, as a printer's type, for reproducing the letter J or j.

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J ³ American  

abbreviation

1. Jewish.

2. Physics. joule; joules. Also j

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J ⁴ American  

Symbol.

1. the tenth in order or in a series.

2. (sometimes lowercase) the medieval Roman numeral for 1.

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J. ⁵ American  

abbreviation

1. Cards. Jack.

2. Journal.

3. Judge.

4. Justice.

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j ¹ British  

/ dʒeɪ /

noun

1. the tenth letter and seventh consonant of the modern English alphabet

2. a speech sound represented by this letter, in English usually a voiced palato-alveolar affricate, as in jam

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j ² British  

symbol

1. maths the unit vector along the y -axis

2. Also called: i. obsolete the imaginary number √–1

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J ³ British  

symbol

1. cards jack

2. joule(s)

3. current density

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abbreviation

1. Japan (international car registration)

J Scientific  

1. Abbreviation of joule

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Other Word Forms

Noun Inflected Forms

• J's
  plural
• Js
  plural
• j's
  plural
• js
  plural

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Example Sentences

See Examples For:

j J J. J's Js j's js

The memes typically used goofy broken English to reveal the inner thoughts of Kabosu and other shiba inu "doge" - pronounced like pizza "dough" but with a "j" at the end.

From BBC ● May 24, 2024

Repeat this algorithm for all one-digit numerical values of i, j and k, and the result will always be either a happy or a sad number.

From Scientific American ● Oct. 24, 2023

Choose a value from 0 to 9 for i, j and k.

From Scientific American ● Oct. 24, 2023

Trubisky j oined the Steelers in March 2022 after a stint backing up Josh Allen in Buffalo.

From Washington Times ● May 19, 2023

Mully had the keys for the j three gates, where bars of black iron as thick as a man’s arm closed off the passage.

From "A Dance with Dragons" by George R. R. Martin

Voters later approved the county reform effort Measure G, which had the unintended effect of repealing Measure J. Measure E would ensure that Measure J remains in effect.

From Los Angeles Times ● Oct. 30, 2026

The ballot paper is set to list the two men as Dan S Sullivan, who will be described as the incumbent Republican senator, and Daniel J Sullivan Jr.

From BBC ● Oct. 29, 2026

Dan J Sullivan has repeatedly denied those claims, telling the local Petersburg Pilot newspaper earlier this year that he "wouldn't even know who to speak to" in Peltola's campaign.

From BBC ● Oct. 23, 2026

On Thursday, diesel at the Flying J hovered around $6.26 a gallon.

From The Wall Street Journal ● Oct. 4, 2026

Before she opened her beauty shop, Aunt J used to temp for various businesses.

From "Split the Sky" by Marie Arnold

The proliferation of satellites is an “existential threat” to the observatory’s work, said J. Anthony Tyson, its chief scientist, who is best known for mapping dark matter.

From The Wall Street Journal ● Nov. 2, 2026

Daniel J. Sullivan, a retired teacher from a remote Alaskan fishing community, has said he entered the Senate race of his own volition.

From Barron's ● Oct. 29, 2026

District Judge J. Michael Seabright, however, delayed the disqualifications from taking effect while he considers an anticipated government request for a stay pending appeal.

From Los Angeles Times ● Oct. 28, 2026

In the small fishing village of Petersburg, he found Dan J. Sullivan, who apparently agreed to run if it would help Peltola win.

From Slate ● Oct. 28, 2026

The message read: “Don’t wish to disturb you. Are you at home? J. Wilkes Booth.”

From "Chasing Lincoln's Killer" by James L. Swanson

In Group J's other match, second-placed Wales also ran up seven goals as they beat North Macedonia 7-1 with Harry Wilson scoring a hat-trick of set-piece goals.

From Barron's ● Nov. 18, 2025

Next for Wales is Tuesday's trip to North Macedonia, who started their campaign with a 3-0 win over Group J's bottom seeds Liechtenstein.

From BBC ● Mar. 22, 2025

But the most recognizable example is LL Cool J's "Father."

From Salon ● Dec. 30, 2024

Together they started a catering business in 2013 called Mr. J’s Kitchen.

From Los Angeles Times ● Sep. 13, 2023

The company redesigned their bottle to be a lot more like E & J’s, and, sure enough, their problem was solved.

From "Blink" by Malcolm Gladwell

I think he’s one of the most underrated spiritual voices in the city, and he’s a pastor who wears Js, so that’s just kind of cool in itself to get the word like that.

From Los Angeles Times ● Sep. 26, 2025

I’m out there in some Artful Dodger, LRG and Evisus with the Js — hood classics, you feel me?

From New York Times ● Jan. 19, 2022

Jackie was for the three Js — John, Jim and Jesse — while Lee was for Lyn.

From Washington Post ● Jul. 11, 2020

Same solid drives, same high, metronomic dribble, same deadening retinue of mid-range Js.

From The New Yorker ● Oct. 25, 2019

Guys were raining Js from deep, doing spin moves through the lane and throwing down in traffic.

From "We Were Here" by Matt De La Peña

Those throaty "j's" and growled "g's" have long found their truest expression in the music that's synonymous with Spain – flamenco.

From The Guardian ● Jun. 19, 2012

I did manage, however, to find our boat's address and the name of the caretaker, both of which I had on a piece of paper with loose "i's" and "j's" scattered thickly through every word.

From The Chauffeur and the Chaperon by Karl Anderson

The harbor-master pronounced his r's very much like j's.

From The Fourth Estate, vol.1 by Armando Palacio Vald?s

There are twenty-four j's in it, and seventeen g's, so you may imagine that it is difficult.

From Five Mice in a Mouse-trap by the Man in the Moon. by Addie Ledyard

The national song of the Basques, a matter of some dozen stanzas, written principally in "j's," "rr's," and "tz's," takes its theme, if one may trust the Castilian translation, from this symbolic oak.

From Spanish Highways and Byways by Katharine Lee Bates

I love the html and js side of the web, but when it comes to CSS, I can design as well as John McCain can pick a running-mate.

From Forbes ● Aug. 16, 2012

But the Brody kids are remarkably well-cast too, and I like how the script and Morgan Saylor’s performance left it open to interpretation js how much she really did or didn’t believe Carrie.

From Time ● Dec. 19, 2011

These were the first steps toward establishing the security which js M.G.'s chief job.

From Time Magazine Archive

He js "much embarrassed," but listens respectfully, then makes a little speech.

From Time Magazine Archive

In the middle all js speed: bugles blow there, stallions leap, and the beards of riding Khans shake out like flame along a wind of fruits and blossoms.

From Time Magazine Archive

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