# 0

## Translingual

Unicode name DIGIT ZERO Basic Latin U+0030
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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 as ‘0’.

### 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
3. (mathematics) The identity element with respect to addition.
$\exists\,\mathbf{0}:\forall a\in A:\mathbf{0}+a=a+\mathbf{0}=a$
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.

#### Derived terms

Other representations of 0:

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

## English

### Pronunciation

• (number, digit, “zero”):
• () enPR: zē'rō, IPA(key): /ˈziːɹəʊ/
• (Received Pronunciation) IPA(key): /ˈzɪəɹəʊ/
•  Audio (US) Sorry, your browser either has JavaScript disabled or does not have any supported player. You can download the clip or download a player to play the clip in your browser. (file)
• Rhymes: -ɪəɹəʊ
• (digit, “oh”):
The pronunciation as a digit is very often shortened to that of the letter O to save time or keep rhythm. This change is required for the tens place of minutes following the hour and in shortened pronunciation of numbers between 10 and 19 hundred, including years, as well as their truncated two-digit forms, where the zero is a leading digit. It is also very common when saying telephone numbers, decimals after the decimal point, the leading zero in decimal fractions less than one, or many other words such as 007.

### 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.