Bull vs. Null — What's the Difference?

A bull is an intact (i.e., not castrated) adult male of the species Bos taurus. More muscular and aggressive than the females of the same species, the cows, bulls have long been an important symbol in many cultures, and play a significant role in beef ranching, dairy farming, and a variety of other cultural activities, including bullfighting and bull riding.

Having no legal force; invalid

An uncastrated male bovine animal

Of no consequence, effect, or value; insignificant.

A bullseye

Amounting to nothing; absent or nonexistent

A person who buys shares hoping to sell them at a higher price later.

(Mathematics) Of or relating to a set having no members or to zero magnitude.

A papal edict

To make null.

Stupid or untrue talk or writing; nonsense

Zero; nothing.

Push or move powerfully or violently

An instrument reading of zero.

(of a cow) behave in a manner characteristic of being on heat.

A non-existent or empty value or set of values.

An adult male bovine mammal.

Zero quantity of expressions; nothing.

The uncastrated adult male of domestic cattle.

Something that has no force or meaning.

The adult male of certain other large animals, such as alligators, elephants, moose, or whales.

(computing) The null character; the ASCII or Unicode character (␀), represented by a zero value, which indicates no character and is sometimes used as a string terminator.

An exceptionally large, strong, and aggressive person.

(computing) The attribute of an entity that has no valid value.

An optimist, especially regarding business conditions.

One of the beads in nulled work.

A person who buys commodities or securities in anticipation of a rise in prices or who tries by speculative purchases to effect such a rise.

(statistics) The null hypothesis.

(Slang) A police officer or detective.

Having no validity; "null and void".

Foolish, deceitful, or boastful language.

Insignificant.

Insolent talk or behavior.

Absent or non-existent.

An official document issued by the pope and sealed with a bulla.

(mathematics) Of the null set.

The bulla used to seal such a document.

(mathematics) Of or comprising a value of precisely zero.

A gross blunder in logical speech or expression.

Causing a complete loss of gene function; amorphic.

See Taurus.

Neutral.

To push; force.

To nullify; to annul.

To push ahead or through forcefully

To return to the null position, setting, etc.

Male.

To form nulls, or into nulls, as in a lathe.

Large and strong like a bull.

To crack; to remove restrictions or limitations in (software).

Characterized by rising prices

Of no legal or binding force or validity; of no efficacy; invalid; void; nugatory; useless.

An adult male of domesticated cattle or oxen.

Having a value of zero; as, of null utility.

Specifically, one that is uncastrated.

Empty; having no members; as, the null set.

A male of domesticated cattle or oxen of any age.

Unassigned or meaningless; - a special value given to variables, especially pointers or logical variables, indicating that it is meaningless and cannot be used in computation; as, an uninitialized pointer in "C" is given a null value. The actual value that is stored in memory to indicate the null condition may vary with the computer language used.

Any adult male bovine.

Something that has no force or meaning.

An adult male of certain large mammals, such as whales, elephants, camels and seals.

That which has no value; a cipher; zero.

A large, strong man.

One of the beads in nulled work.

(finance) An investor who buys (commodities or securities) in anticipation of a rise in prices.

To annul.

(slang) A policeman.

A quantity of no importance;

(US) Specifically, a policeman employed in a railroad yard.

Lacking any legal or binding force;

An elderly lesbian.

A crown coin; its value, {{5 shillings.}}

(UK) bullseye

The central portion of a target, inside the inner and magpie.

A man or boy (derived from the Philadelphia English pronunciation of “boy”, which is practically a homophone of “bull”)

Clipping of bullshit

A man who has sex with another man's wife or girlfriend with the consent of both.

(obsolete) A drink made by pouring water into a cask that previously held liquor.

A papal bull, an official document or edict from the Pope.

A seal affixed to a document, especially a document from the Pope.

A lie.

Nonsense.

(obsolete) A bubble.

Large and strong, like a bull.

(of large mammals) Adult male.

(finance) Of a market in which prices are rising (compare bear).

Stupid.

To force oneself (in a particular direction).

To be in heat; to be ready for mating with a bull.

To mate with a cow or heifer.

To endeavour to raise the market price of.

To endeavour to raise prices in.

To publish in a Papal bull

To mock; to cheat.

(intransitive) To lie, to tell untruths.

To polish boots to a high shine.

The male of any species of cattle (Bovidæ); hence, the male of any large quadruped, as the elephant; also, the male of the whale.

One who, or that which, resembles a bull in character or action.

Taurus, the second of the twelve signs of the zodiac.

A ludicrously false statement; nonsense. Also used as an expletive.

A seal. See Bulla.

A letter, edict, or respect, of the pope, written in Gothic characters on rough parchment, sealed with a bulla, and dated "a die Incarnationis," i. e., "from the day of the Incarnation." See Apostolical brief, under Brief.

A grotesque blunder in language; an apparent congruity, but real incongruity, of ideas, contained in a form of expression; so called, perhaps, from the apparent incongruity between the dictatorial nature of the pope's bulls and his professions of humility.

Of or pertaining to a bull; resembling a bull; male; large; fierce.

To be in heat; to manifest sexual desire as cows do.

Uncastrated adult male of domestic cattle

A large and strong and heavyset man;

Obscene words for unacceptable behavior;

A serious and ludicrous blunder;

Uncomplimentary terms for a policeman

An investor with an optimistic market outlook; an investor who expects prices to rise and so buys now for resale later

(astrology) a person who is born while the sun is in Taurus

The second sign of the zodiac; the sun is in this sign from about April 20 to May 20

The center of a target

A formal proclamation issued by the pope (usually written in antiquated characters and sealed with a leaden bulla)

Mature male of various mammals of which the female is called `cow'; e.g. whales or elephants or especially cattle

Push or force;

Try to raise the price of stocks through speculative buying

Talk through one's hat;

Advance in price;