The noun bull has 11 senses (first 4 from tagged texts)
1. (2) bull -- (uncastrated adult male of domestic cattle)
2. (1) bull, bruiser, strapper, Samson -- (a large and strong and heavyset man; "he was a bull of a man"; "a thick-skinned bruiser ready to give as good as he got")
3. (1) bullshit, bull, Irish bull, horseshit, shit, crap, dogshit -- (obscene words for unacceptable behavior; "I put up with a lot of bullshit from that jerk"; "what he said was mostly bull")
4. (1) bull -- (a serious and ludicrous blunder; "he made a bad bull of the assignment")
5. bull, cop, copper, fuzz, pig -- (uncomplimentary terms for a policeman)
6. bull -- (an investor with an optimistic market outlook; an investor who expects prices to rise and so buys now for resale later)
7. Taurus, Bull -- ((astrology) a person who is born while the sun is in Taurus)
8. Taurus, Taurus the Bull, Bull -- (the second sign of the zodiac; the sun is in this sign from about April 20 to May 20)
9. bull's eye, bull -- (the center of a target)
10. bull, papal bull -- (a formal proclamation issued by the pope (usually written in antiquated characters and sealed with a leaden bulla))
11. bull -- (mature male of various mammals of which the female is called `cow'; e.g. whales or elephants or especially cattle)
Overview of verb bull
The verb bull has 4 senses (first 1 from tagged texts)
1. (1) bull, bull through -- (push or force; "He bulled through his demands")
2. bull -- (try to raise the price of stocks through speculative buying)
3. bullshit, bull, fake -- (talk through one's hat; "The politician was not well prepared for the debate and faked it")
4. bull -- (advance in price; "stocks were bulling")