0

Glyph origin
Tenth century “West Arabic” variation of the Nepali form of Hindu-Arabic numeral &#x202B;&#x202C; (compare Devanāgarī script ), adopted for use with the Latin script in Europe. See for more.

Symbol

 * 1)  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
 * 1)  The identity element with respect to addition.
 * $$\exists\,\mathbf{0}:\forall a\in A:\mathbf{0}+a=a+\mathbf{0}=a$$
 * 1)  A Boolean or truth value corresponding to false.
 * f : Bk → B : B = {0, 1}
 * A&B&C=0 → A=0 || B=0 || C=0
 * 1)  Indicates that the number that follows is in octal.
 * 2)  the pitch of a tone that is more extreme than 1 (higher or lower, depending on local convention; e.g. 0 is the highest tone in Chatino)
 * 3)  lack of an inherent tone; the pitch depends on the tones of the surrounding syllables.

Alternative forms
The following forms are equivalent as a decimal digit:

The additional following forms are equivalent as a cardinal number:

Derived terms

 * 10, 20, 30, ..., 100, 101, 102, ..., 1000, ..., 10,000, 100,000, 1,000,000, ...
 * -10, -1.01, -0.1, ..., 0.1, 0.01, 0.001, ...
 * $0, $0.01, $1.00


 * Gallery

Pronunciation

 * The pronunciation as a digit is very often shortened to that of the letter 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  double o seven.
 * The pronunciation as a digit is very often shortened to that of the letter 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  double o seven.
 * The pronunciation as a digit is very often shortened to that of the letter 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  double o seven.
 * The pronunciation as a digit is very often shortened to that of the letter 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  double o seven.
 * The pronunciation as a digit is very often shortened to that of the letter 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  double o seven.
 * The pronunciation as a digit is very often shortened to that of the letter 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  double o seven.
 * The pronunciation as a digit is very often shortened to that of the letter 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  double o seven.
 * The pronunciation as a digit is very often shortened to that of the letter 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  double o seven.
 * The pronunciation as a digit is very often shortened to that of the letter 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  double o seven.
 * The pronunciation as a digit is very often shortened to that of the letter 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  double o seven.
 * The pronunciation as a digit is very often shortened to that of the letter 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  double o seven.
 * The pronunciation as a digit is very often shortened to that of the letter 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  double o seven.

Noun

 * 1) 0.
 * 2) The origin, starting point, or fixed reference point, especially for a measurement.
 * 3)  The off or low bit state.
 * 1)  The off or low bit state.

Derived terms

 * 0th, the ordinal number form

Noun

 * 1)  bottom

Etymology 2
Grammaticisation of.