0

Translingual

Cardinal number

• Arabic numerals: 0
• Chinese numerals: 零, 〇

Pronunciation

See zero

Pronunciation note

The pronunciation of zero as a digit is very often shortened to that of the letter O to save time or keep rhythm. This is common when saying telephone numbers, the tens place in times, the tens place in the shortened pronunciation of numbers especially between 10 and 19 hundred, including years, 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. The cardinal number zero indicating absence of any quantity.

   They scored 0 in their worst game yet.

2. numeral corresponding to the number zero.

   The flashing 0 indicates that time is up.

3. A digit in decimal, binary, and every other base numbering system.

   Binary numbers contain only 0 and 1.

   Hexadecimal numbers ending in 0 are divisible by 16.

4. The origin, starting point, or fixed reference point, especially for a measurement.

   The 0 for the Celcius scale is 273.15 Kelvin.

5. Nothing, nought.

   The shipment was lost, so they had 0 in stock.

6. Template:mathematics The identity element with respect to addition.

   $\exists \,\mathbf {0} :\forall a\in A:\mathbf {0} +a=a+\mathbf {0} =a$

7. (computer science or electrical engineering) bit state corresponding to binary digit 0 or FALSE; in a logic gate in the low state or off.

   If the NOT gate input is ON, the output is 0.

Synonyms

• number: cipher, nil, nought, null
• digit: slashed zero

Derived terms

• 0th, the ordinal number form
• 10, 20, 100, etc. cardinal number representations containing digit 0.

Adjective

0

1. Of no or zero quantity; of cardinality zero.

   In the desert 0 cm precipitation per month is common.

2. Of the origin, starting point, especially for a measurement.

   The ice will begin to melt at 0 degrees C.

See also

• 0 (number) in Wikipedia
• 1