j
a unit vector on the y-axis of a coordinate system.
j
1 AmericanSymbol.
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Mathematics. a unit vector on the y-axis of a coordinate system.
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Engineering. the imaginary number .
J
2
American
[jey]
/ dʒeɪ /
Or
j
noun
-
J's,
plural
-
Js,
plural
-
j's,
plural
-
js
plural
-
the tenth letter of the English alphabet, a consonant.
-
any spoken sound represented by the letter J or j, as in just, major, or rajah.
-
something having the shape of a J .
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a written or printed representation of the letter J or j.
-
a device, as a printer's type, for reproducing the letter J or j.
J
4
American
Symbol.
-
the tenth in order or in a series.
-
(sometimes lowercase) the medieval Roman numeral for 1.
J.
5
American
abbreviation
-
Cards. Jack.
-
Journal.
-
Judge.
-
Justice.
J
1
British
symbol
-
cards jack
-
joule(s)
-
current density
abbreviation
j
2
British
symbol
-
maths the unit vector along the y -axis
-
Also called: i. obsolete the imaginary number √–1
j
3
British
/ dʒeɪ /
noun
-
the tenth letter and seventh consonant of the modern English alphabet
-
a speech sound represented by this letter, in English usually a voiced palato-alveolar affricate, as in jam
J
Scientific
Other Word Forms
Noun Inflected Forms
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
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
With these new values for i, j and k, continue the algorithm at step 2.
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
They also worked closely with Miami-based Cuban American choreographer Cultura, who has previously worked with Maluma, J Balvin, and Karol G, among others.
From Los Angeles Times ● Aug. 24, 2026
Bad Bunny and J Balvin went no further beyond “Oasis.”
From Los Angeles Times ● Aug. 11, 2026
Profit from Berkshire’s portfolio of manufacturing, service and retailing businesses—a group that includes industrial metal components, Duracell batteries and Flying J fuel stations—jumped 24% to $4.47 billion.
From The Wall Street Journal ● Aug. 8, 2026
At last year's Club World Cup final, which was also organised by Fifa and held in New Jersey, there was a 24-minute half-time featuring live music from Coldplay, J Balvin, Doja Cat and Tems.
From BBC ● Jul. 19, 2026
When Aunt J taught him, she had no idea how well he’d take to cooking.
From "Split the Sky" by Marie Arnold
Dan J. Sullivan is persisting and Alaska's top court ruled last month that he can stay in the race.
From Barron's ● Aug. 24, 2026
Alarmed, she sat up with J. all night.
From The Wall Street Journal ● Aug. 20, 2026
She cites the difficulty of finding consistent medical care for J., the “threat of debt” that hung over their lives and the “impenetrable mazes of paperwork” in which she wandered.
From The Wall Street Journal ● Aug. 20, 2026
Ryan Paylor, senior portfolio manager with veteran closed-end bond specialists Thomas J. Herzfeld Advisors, highlights four closed-ends that invest in municipal bonds free from federal tax.
From MarketWatch ● Aug. 19, 2026
“Which that were my own belief,” answered Joe; “her compliments to Mrs. J. Gargery—”
From "Great Expectations" by Charles Dickens
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
“Ray J’s public statements are blatantly false,” the lawsuit says.
From Los Angeles Times ● Oct. 2, 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
When everything comes into focus, I realize I’m lying on the small red sofa in the back office of Aunt J’s hair salon.
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
“We’re teammates, so I tolerate you. That doesn’t mean I like you. Besides, Drew and I’ve been carrying your deadweight for two years. All you do is shoot Js that you can’t make.”
From "Here to Stay" by Sara Farizan
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
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 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
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
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
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
He js "much embarrassed," but listens respectfully, then makes a little speech.
From Time Magazine Archive
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
