# 0

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See also: o, O, 0., , and Appendix:Variations of "o"

 0 U+0030, 0 DIGIT ZERO
 ← /[U+002F] Basic Latin 1 →[U+0031]

## Translingual

English Wikipedia has an article on:
Wikipedia

### Etymology

Tenth century “West Arabic” variation of the Nepali form of Hindu-Arabic numeral ‫٠(0)‬ (compare Devanāgarī script ), adopted for use with the Latin script in Europe.

### Symbol

0

1. (Arabic digits) The cardinal number zero indicating absence of any quantity.
2. A digit in decimal, binary, and every other base numbering system.
15 × 134 = 2010
0000 00012
0x1000E001 (hexadecimal notation)
3. (mathematics) The identity element with respect to addition.
${\displaystyle \exists \,\mathbf {0} :\forall a\in A:\mathbf {0} +a=a+\mathbf {0} =a}$
4. () A Boolean or truth value corresponding to false.
f : Bk → B : B = {0, 1}
A&B&C=0 → A=0 || B=0 || C=0
5. (computing) Indicates that the number that follows is in octal.

### See also

Other representations of 0:

 Signal flag (ICS and NATO): Semaphore:  After showing "numeric"

## English

### Noun

0 (plural 0s)

1. 0.
2. The origin, starting point, or fixed reference point, especially for a measurement.
The 0 for the Celsius scale is 273.15 Kelvin.
3. (electrical engineering) The off or low bit state.
If the NOT gate input is 1, the output is 0.

## Chinese

### Noun

0

1. zero
2. (gay slang) bottom

#### Related terms

• 0.5 (língdiǎnwǔ)
• 1 ()

#### Derived terms

 10 (yīlíng)