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  

symbol

1. cards jack

2. joule(s)

3. current density

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abbreviation

1. Japan (international car registration)

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  

/ 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 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

“If this is his revenge, he wrongs me. It was Euron who in- j sisted he be taken, to keep him from making mischief with his birds.”

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

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

The effects are rippling into the broader global economy, and the pain is acutely felt at truck stops like the Flying J in Orange, Texas, where diesel hovered around $6.26 a gallon on Thursday.

From The Wall Street Journal ● Oct. 5, 2026

She also collaborated with Milo J on “Llora Llora” — a folksy lullaby off the Argentine rapper’s masterpiece “La Vida Era Más Corta.”

From Los Angeles Times ● Sep. 29, 2026

As a result of the files, the US-Ireland Alliance said the George J Mitchell Scholarship Program would no longer bear his name.

From BBC ● Sep. 21, 2026

Aunt J says she’s going to a community meeting to discuss what their response should be if Faith & Honor does show up.

From "Split the Sky" by Marie Arnold

One of the four candidates on the ballot is Dan J. Sullivan, not to be confused with Sen. Dan S. Sullivan.

From Slate ● Oct. 24, 2026

After a five-year hiatus, "A Court of Splintered Harmony" will reunite author Sarah J. Maas's passionate fan base for the midnight release of the sixth book in her genre-defining series.

From Barron's ● Oct. 23, 2026

Two days later, attorneys Lisa J. Banks and Sarah E. Nesbitt said in a statement that they represented a woman the committee interviewed.

From Los Angeles Times ● Oct. 22, 2026

"What's emerging here is a way to systematically identify meaningful subgroups within complex disease," says Eric Klee, Ph.D., co-senior author and the Everett J. and Jane M. Hauck Midwest Associate Director of Research and Innovation.

From Science Daily ● Oct. 19, 2026

I will tell you, reader, that I imagine her like Kelly J., who looks nothing like a pasha’s daughter, but very much like a Disney princess.

From "Everything Sad Is Untrue" by Daniel Nayeri

The number likely refers to Ray J’s heart’s ejection fraction, which measures the volume of blood coming out of the heart’s left ventricle or being drawn into the right ventricle when the heart beats.

From Los Angeles Times ● Jan. 29, 2026

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

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

From Salon ● Dec. 30, 2024

"J wasn't event embarrassed," Britney added after her assistant mocked J's greeting.

From BBC ● Oct. 25, 2023

There’s no telling what would fly out of Aunt J’s mouth if she were here.

From "Split the Sky" by Marie Arnold

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

With a single letter distinguishing their first names, they're referred to collectively as "the Js" by cast and crew.

From Los Angeles Times ● Mar. 21, 2018

“The rest, eh, Pip?” said Joe, looking at it with a slow, searching eye, “One, two, three. Why, here’s three Js, and three Os, and three J-O, Joes in it, Pip!”

From "Great Expectations" by Charles Dickens

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 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

She said that we could find enough to do minding our p's and q's in life, without quarreling over "i's" and "j's"; so the argument ended, and the girls turned their attention to making tea.

From The Chauffeur and the Chaperon by Karl Anderson

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

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

A scene in which the young man fancies he js in communication with the shade of Millhouser's mother is as embarrassing as any in recent fiction.

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

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

From Time Magazine Archive

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