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bull [ˈbʊl]

1 bull noun
  • an adult male animal of the ox and cow family
  • an adult male of some other large animals (such as elephants or whales)—often used before another noun
  • a person who tries to make money by buying stocks and selling them after their price has gone up : a person who expects the price of stocks to go up

2 bull noun
  • foolish or untrue words or ideas

3 bull noun
  • an official command or statement written by the pope