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  • bull
    bull
    noun
    the male of a bovine animal, especially of the genus Bos, with sexual organs intact and capable of reproduction.
  • Bull
    Bull
    noun
    Ole (Bornemann) 1810–80, Norwegian violinist and composer.
  • bull.
    bull.
    abbreviation
    bulletin.
Synonyms

bull

1 American  
[bool] / bʊl /

noun

  1. the male of a bovine animal, especially of the genus Bos, with sexual organs intact and capable of reproduction.

  2. the male of certain other mammals, as elephants and moose.

  3. a large, solidly built person.

  4. a person who believes that market prices, especially of stocks, will increase (opposed to bear).

  5. Astronomy, Astrology. Bull, the constellation or sign of Taurus.

  6. a bulldog.

  7. Slang. a police officer.


adjective

  1. male.

  2. of, relating to, or resembling a bull, as in strength.

  3. having to do with or marked by a continuous trend of rising prices, as of stocks.

    a bull market.

verb (used with object)

  1. Stock Exchange. to attempt to raise the price of.

  2. to speculate in, in expectation of a rise in price.

  3. to force; shove.

    to bull one's way through a crowd.

  4. Nautical. to ram (a buoy).

idioms

  1. take the bull by the horns, to attack a difficult or risky problem fearlessly.

  2. bull in a china shop,

    1. an awkward or clumsy person.

    2. an inconsiderate or tactless person.

    3. a troublemaker; dangerous person.

bull 2 American  
[bool] / bʊl /

noun

Slang.
  1. exaggeration, lies, or nonsense.


idioms

  1. shoot / throw the bull, to talk aimlessly.

    We just sat around shooting the bull.

bull 3 American  
[bool] / bʊl /

noun

  1. a bulla or seal.

  2. Roman Catholic Church. a formal papal document having a bulla attached.


Bull 4 American  
[bool] / bul /

noun

  1. Ole (Bornemann) 1810–80, Norwegian violinist and composer.


bull. 5 American  

abbreviation

  1. bulletin.


bull 1 British  
/ bʊl /

noun

  1. any male bovine animal, esp one that is sexually mature

  2. the uncastrated adult male of any breed of domestic cattle

  3. the male of various other animals including the elephant and whale

  4. a very large, strong, or aggressive person

  5. stock exchange

    1. a speculator who buys in anticipation of rising prices in order to make a profit on resale

    2. ( as modifier ) Compare bear 1

      a bull market

  6. short for bull's-eye bull's-eye

  7. slang short for bullshit

  8. short for bulldog bull terrier

  9. a clumsy person

  10. slang

    1. to pass time talking lightly

    2. to boast or exaggerate

  11. to face and tackle a difficulty without shirking

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. male; masculine

    a bull elephant

  2. large; strong

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. (tr) to raise or attempt to raise the price or prices of (a stock market or a security) by speculative buying

  2. (intr) (of a cow) to be on heat

  3. slang (intr) to talk lightly or foolishly

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Bull 2 British  
/ bʊl /

noun

  1. John . 1563–1628, English composer and organist

  2. See John Bull

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Bull 3 British  
/ bʊl /

noun

  1. the constellation Taurus, the second sign of the zodiac

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

bull 4 British  
/ bʊl /

noun

  1. Also called: Irish bull.  a ludicrously self-contradictory or inconsistent statement

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

bull 5 British  
/ bʊl /

noun

  1. a formal document issued by the pope, written in antiquated characters and often sealed with a leaden bulla

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

bull More Idioms  

    More idioms and phrases containing bull


Other Word Forms

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."

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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.

That was the year Ferrari dropped the ball on strategy in Abu Dhabi and threw away the title, letting Red Bull and Vettel in to win their first title.

From BBC • May 19, 2026

Cardboard cutouts of photographers are stationed along the route during the Red Bull Soapbox Race in downtown Los Angeles.

From Los Angeles Times • May 17, 2026

“A stand-alone E15 bill could also struggle to secure the 60 votes needed for cloture,” said Jim Wiesemeyer of Ag Bull Trading in a note Thursday.

From The Wall Street Journal • May 15, 2026

Teenage forward Julian Hall made Major League Soccer history by becoming the youngest player to score a hat-trick in Red Bull New York's 3-2 win over Columbus Crew.

From BBC • May 14, 2026

Dunwing flew off to her nest back at the court of King Bull Sparra.

From "Redwall" by Brian Jacques

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