bull
1 Americannoun
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the male of a bovine animal, especially of the genus Bos, with sexual organs intact and capable of reproduction.
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the male of certain other mammals, as elephants and moose.
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a large, solidly built person.
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a person who believes that market prices, especially of stocks, will increase (opposed to bear).
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Astronomy, Astrology. Bull, the constellation or sign of Taurus.
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a bulldog.
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Slang. a police officer.
adjective
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male.
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of, relating to, or resembling a bull, as in strength.
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having to do with or marked by a continuous trend of rising prices, as of stocks.
a bull market.
verb (used with object)
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Stock Exchange. to attempt to raise the price of.
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to speculate in, in expectation of a rise in price.
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to force; shove.
to bull one's way through a crowd.
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Nautical. to ram (a buoy).
idioms
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take the bull by the horns, to attack a difficult or risky problem fearlessly.
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bull in a china shop,
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an awkward or clumsy person.
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an inconsiderate or tactless person.
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a troublemaker; dangerous person.
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noun
idioms
noun
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a bulla or seal.
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Roman Catholic Church. a formal papal document having a bulla attached.
noun
abbreviation
noun
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any male bovine animal, esp one that is sexually mature
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the uncastrated adult male of any breed of domestic cattle
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the male of various other animals including the elephant and whale
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a very large, strong, or aggressive person
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stock exchange
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a speculator who buys in anticipation of rising prices in order to make a profit on resale
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( as modifier ) Compare bear 1
a bull market
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short for bull's-eye bull's-eye
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slang short for bullshit
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short for bulldog bull terrier
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a clumsy person
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slang
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to pass time talking lightly
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to boast or exaggerate
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to face and tackle a difficulty without shirking
adjective
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male; masculine
a bull elephant
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large; strong
verb
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(tr) to raise or attempt to raise the price or prices of (a stock market or a security) by speculative buying
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(intr) (of a cow) to be on heat
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slang (intr) to talk lightly or foolishly
noun
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John . 1563–1628, English composer and organist
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See John Bull
noun
noun
noun
Other Word Forms
Derived Forms
Inflected Forms
Participles
Conjugated Forms
Present
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bullsimple
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bullssimple
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have bulledperfect
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has bulledperfect
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am bullingprogressive
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are bullingprogressive
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is bullingprogressive
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have been bullingperfect progressive
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has been bullingperfect progressive
Past
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bulledsimple
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had bulledperfect
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was bullingprogressive
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were bullingprogressive
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had been bullingperfect progressive
Future
Etymology
Origin of bull1
First recorded in 1150–1200; Middle English bule, Old English bula; akin to Old Norse boli; Greek phallós “penis,” from a root meaning “to swell”; see bullock
Origin of bull2
First recorded in 1620–30; from Medieval Latin bulla “play, game, jest,” perhaps special use of Latin bulla “bubble”; now generally taken as a euphemistic shortening of bullshit
Origin of bull3
First recorded in 1250–1300; Middle English bull(e) “a (lead) seal affixed to a papal edict, papal edict; official sealed document,” from Medieval Latin bulla “seal, sealed document,” from Latin ; see origin at bulla
Explanation
A bull is a male cow. You can usually tell which animal in a pasture is a bull by its large size and horns. A male bovine — or cow — is a bull, and so is a male whale or elephant. Fittingly, the word bull is sometimes also used for a particularly bulky, muscular man. Another informal and slightly obscene meaning is "ridiculous," or "not true," as when you tell a lie and your brother rudely replies, "Bull!" This slang meaning has its roots in the Old French bole, "deception or trick."
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:
Deputies later learned that the pit bull was owned by a family member who lived with the victim, the department said.
From Los Angeles Times ● Jul. 21, 2026
“The capex trade will eventually end, likely in a destructive way,” said Correa and Weisberger from the bull camp.
From MarketWatch ● Jul. 20, 2026
Some analysts are hopeful that a resurgence by those tech giants, whose stocks slumped over the spring, could revive the cooling bull market.
From MarketWatch ● Jul. 19, 2026
The biggest risk is one common to all bull markets.
From The Wall Street Journal ● Jul. 15, 2026
I thought we were going to kick back, shoot the bull and watch a movie, but JonPaul couldn’t relax until he’d disinfected his gym clothes.
From "Liar, Liar" by Gary Paulsen
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Verstappen's pace came despite Red Bull reverting to a standard rear wing while they refine the the 'flip-flop' or 'somersault' design that caused high-speed crashes for the Dutchman in the past two races.
From BBC ● Jul. 17, 2026
Bull was set to begin an around-the-world trip with a friend in Wilton, Connecticut.
From Slate ● Jul. 7, 2026
Inside the terminal, Edythe Bull, 72, had missed the bus and was waiting for the next one.
From Slate ● Jul. 7, 2026
Russell managed to pass Verstappen on lap nine before the four-time champion fell back into the clutches of Ferrari's Charles Leclerc, who moved past the Red Bull a lap later.
From BBC ● Jul. 4, 2026
“Mary Anne,” Bull said, “what’s the capital of Uruguay?”
From "The Great Santini" by Pat Conroy
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“I had to sit on a bull. Ron Howard drove me home in his VW, and I said, ‘Ron, tell me now.
From Fox News ● Oct. 15, 2019
“Once he got that lead, he was a pit bull. He pitched better in the sixth and seventh innings.”
From Washington Post ● May 25, 2019
“I’m sort of like a pit bull. I never let it go.”
From The New Yorker ● Apr. 6, 2016
"He's competitive, extremely athletic and strong as a bull. That's a great combination to work from."
From Los Angeles Times ● Oct. 4, 2015
“This is my bull. That makes it my business.”
From "Water for Elephants" by Sara Gruen
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Meanwhile, the AI bulls include BCA’s Juan Correa, head of portfolio construction, and Noah Weisberger, head of equities, who think the compute market remains “scarce rather than oversupplied.”
From MarketWatch ● Jul. 20, 2026
For months, cybersecurity bulls have offered that a growing number of artificial intelligence-driven attacks from hackers and bad actors in the Middle East would be good for business.
From MarketWatch ● Jul. 16, 2026
Historically, rising interest rates, new regulations and underappreciated risks have brought bulls down.
From The Wall Street Journal ● Jul. 15, 2026
July happens to overlap with the animal's mating season - the "peak breeding" period where testosterone levels among bulls are heightened, Jennifer Barfield, the scientific lead at Colorado's Laramie Foothills Bison Conservation Herd, said.
From BBC ● Jul. 13, 2026
Manuel Castellan told me the dead bulls were dragged away and their meat was sold in butcher shops.
From "100 Sideways Miles" by Andrew Smith
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By one measure, investors haven’t been this bulled up on stocks since the heady days of the original meme-stock frenzy back in 2021.
From MarketWatch ● May 19, 2026
The 7-foot-3 center Aday Mara bulled his way to the rim and swatted shots away.
From The Wall Street Journal ● Apr. 7, 2026
Hill, who plays like he should be a tight end for an NFL team, bulled his way around for 18 points, making nine of 13 shots.
From Los Angeles Times ● Jan. 14, 2026
Swift's three-yard TD gave the Bears a 7-0 lead and Monangai bulled over for a four-yard score that made it 17-9 in the fourth quarter.
From Barron's ● Nov. 29, 2025
He bulled his face in close to us, his chin prickly with whiskers.
From "October Sky" by Homer Hickam
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“I just want to make sure. Did you apologize for the behavior that went on with you and your date?” he asked, bulling over her attempts to interrupt him.
From Salon ● Jun. 3, 2024
British Prime Minister Boris Johnson said on Wednesday he abhorred bulling and the abuse of power after he was asked why he promoted a Conservative lawmaker following complaints of sexual misconduct made against him.
From Reuters ● Jul. 6, 2022
ARLINGTON, Texas — KJ Jefferson got back on the field late, bruised knee and all, bulling over a defender for a first down and then kneeling down on the final snap for No. 16 Arkansas.
From Washington Post ● Sep. 25, 2021
Eleby led a 12-play, 75-yard drive that ended with Jefferson bulling over from 3 yards out to make it 41-34.
From Seattle Times ● Sep. 18, 2021
The horse reverted to his rebellious habits in the starting gate, bulling forward and raising a fuss.
From "Seabiscuit: An American Legend" by Laura Hillenbrand
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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.