# Zero vs. O

## Difference Between Zero and O

#### Zeronoun

The numerical symbol 0; a cipher.

#### Ointerjunction

Used before the name of or a pronoun referring to a person or thing being formally addressed

*"How can I put it to you, O you who prepare to travel with important matters on your mind?" (Jo Durden-Smith).*

#### Zeronoun

The identity element for addition.

#### Ointerjunction

Used to express surprise or strong emotion

*"O how I laugh when I think of my vague indefinite riches" (Henry David Thoreau).*

#### Zeronoun

A cardinal number indicating the absence of any or all units under consideration.

#### Onoun

The 15th letter of the modern English alphabet.

#### Zeronoun

An ordinal number indicating an initial point or origin.

#### Onoun

Any of the speech sounds represented by the letter o.

#### Zeronoun

An argument at which the value of a function vanishes.

#### Onoun

The 15th in a series.

#### Zeronoun

The temperature indicated by the numeral 0 on a thermometer.

#### Onoun

Something shaped like the letter O.

#### Zeronoun

A sight setting that enables a firearm to shoot on target.

#### Onoun

O One of the four major blood groups in the ABO system. Individuals with this blood group have neither A nor B antigens on the surface of their red blood cells, and have both anti-A and anti-B antibodies in their blood serum.

#### Zeronoun

(Informal) One having no influence or importance; a nonentity

*a manager who was a total zero.*

#### Onoun

A zero.

#### Zeronoun

The lowest point

*His prospects were approaching zero.*

#### Opreposition

Of

*lots o' luck.*

*top o' the morning.*

#### Zeronoun

(Informal) Nothing; nil

*Today I accomplished zero.*

#### Onoun

(IRC) Operator

#### Zeroadjective

Of, relating to, or being zero.

#### Onoun

Object, see SVO

#### Zeroadjective

Having no measurable or otherwise determinable value.

#### Onoun

A zero used in reading out numbers.

*It is currently two-o-five in the afternoon (2:05 PM).*

*The first permanent English settlement in America was in Jamestown in sixteen-o-seven (1607).*

#### Zeroadjective

(Informal) Not any; no

*"The town has ... practically no opportunities for amusement, zero culture" (Robert M. Adams).*

#### Oadjective

Over

#### Zeroadjective

Designating a ceiling not more than 16 meters (52 feet) high.

#### Onoun

the blood group whose red cells carry neither the A nor B antigens;

*people with type O blood are universal donors*

#### Zeroadjective

Limited in horizontal visibility to no more than 55 meters (180 feet).

#### Onoun

a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust

#### Zeroadjective

(Linguistics) Of or relating to a morpheme that is expected by an established, regular paradigm but has no spoken or written form. Moose has a zero plural; that is, its plural is moose.

#### Onoun

the 15th letter of the Roman alphabet

#### Zeroverb

To adjust (an instrument or a device) to zero value.

#### Zeronumeral

The cardinal number occurring before one and that denotes no quantity or amount at all, represented in Arabic numerals as 0.

*The conductor waited until the passenger count was zero.*

*A cheque for zero dollars and zero cents crashed the computers on division by zero.*

#### Zeronoun

The numeric symbol that represents the cardinal number zero.

*In unary and k-adic notation in general, zero is the empty string.*

*Write 0.0 to indicate a floating point number rather than the integer zero.*

*The zero sign in American Sign Language is considered rude in some cultures.*

#### Zeronoun

The digit 0 in the decimal, binary, and all other base numbering systems.

*One million has six zeroes.*

#### Zeronoun

Nothing, or none.

*The shipment was lost, so they had zero in stock.*

*He knows zero about humour.*

*In the end, all of our hard work amounted to zero.*

#### Zeronoun

The value of a magnitude corresponding to the cardinal number zero.

*The electromagnetic field does not drop all of the way to zero before a reversal.*

#### Zeronoun

The point on a scale at which numbering or measurement originates.

*The temperature outside is ten degrees below zero.*

#### Zeronoun

(mathematics) A value of the independent variables of a function, for which the function is equal to zero.

*The zeroes of a polynomial are its roots by the fundamental theorem of algebra.*

*The derivative of a continuous, differentiable function that twice crosses the axis must have a zero.*

*The nontrivial zeros of the Riemann zeta function may all lie on the critical line.*

#### Zeronoun

The additive identity element of a monoid or greater algebraic structure, particularly a group or ring.

*Since a commutative zero is the inverse of any additive identity, it must be unique when it exists.*

*The zero (of a ring or field) has the property that the product of the zero with any element yields the zero.*

*The quotient ring over a maximal ideal is a field with a single zero element.*

#### Zeronoun

(slang) A person of little or no importance.

*They rudely treated him like a zero.*

#### Zeronoun

(military) A Mitsubishi A6M Zero, a long range fighter aircraft operated by the Japanese Navy Air Service from 1940 to 1945.

#### Zeronoun

A setting of calibrated instruments such as a firearm.

#### Zeronoun

(finance) A security which has a zero coupon (paying no periodic interest).

*The takeovers were financed by issuing zeroes.*

#### Zeroadjective

(informal) no, not any

*She showed zero respect.*

#### Zeroadjective

(meteorology) Of a cloud ceiling, limiting vision to 50 feet (15 meters) or less.

#### Zeroadjective

(meteorology) Of horizontal visibility, limited to 165 feet (50.3 meters) or less.

#### Zeroadjective

(linguistics) Present at an abstract level, but not realized in the data.

*The stem of "kobieta" with the zero ending is "kobiet".*

#### Zeroverb

(transitive) To set a measuring instrument to zero; to calibrate instrument scale to valid zero.

*Zero the fluorometer with the same solvent used in extraction.*

#### Zeroverb

To change a memory location or range to values of zero; to set a variable in a computer program to zero.

*Results were inconsistent because an array wasn’t zeroed during initialization.*

#### Zeroverb

(transitive) To cause or set some value or amount to be zero.

*They tried to zero the budget by the end of the quarter.*

#### Zeroverb

(transitive) To eliminate; to delete; to overwrite with zeros.

#### Zeroverb

(intransitive) To disappear

#### Zeronoun

a quantity of no importance;

*it looked like nothing I had ever seen before*

*reduced to nil all the work we had done*

*we racked up a pathetic goose egg*

*it was all for naught*

*I didn't hear zilch about it*

#### Zeronoun

a mathematical element that when added to another number yields the same number

#### Zeronoun

the quantity that registers a reading of zero on a scale

#### Zeroverb

adjust (an instrument or device) to zero value

#### Zeroverb

adjust (as by firing under test conditions) the zero of (a gun);

*He zeroed in his rifle at 200 yards*

#### Zeroadjective

indicating the absence of any or all units under consideration;

*a zero score*

#### Zeroadjective

indicating an initial point or origin

#### Zeroadjective

of or relating to the null set (a set with no members)

#### Zeroadjective

having no measurable or otherwise determinable value;

*the goal is zero population growth*