bull (Noun) — (astrology) a person who is born while the sun is in Taurus.
bull (Noun) — The second sign of the zodiac; the sun is in this sign from about April 20 to May 20.
bull (Noun) — Uncastrated adult male of domestic cattle.
bull (Noun) — A large and strong and heavyset man. ex. "he was a bull of a man"
bull (Noun) — Obscene word for unacceptable behaviour.
bull (Noun) — A serious and ludicrous blunder. ex. "he made a bad bull of the assignment"
bull (Noun) — Uncomplimentary term for a policeman.
bull (Noun) — An investor with an optimistic market outlook; an investor who expects prices to rise and so buys now for resale later.
bull (Noun) — The centre of a target.
bull (Noun) — A formal proclamation issued by the pope (usually written in antiquated characters and sealed with a leaden bulla).
bull (Noun) — Mature male of various mammals of which the female is called 'cow'; e.g. whales, elephants or especially cattle.
bull (Verb) — Push or force. ex. "He bulled through his demands"
bull (Verb) — (investing) try to raise the price of stocks through speculative buying.
bull (Verb) — Speak insincerely or without regard for facts or truths.
bull (Verb) — Advance in price. ex. "stocks were bulling"