0

See also: o, O, 0., 〇, and Appendix:Variations of "o"

Character variations

⁰ U+2070, ⁰ SUPERSCRIPT ZERO ← [U+206F] Superscripts and Subscripts ⁱ → [U+2071]

₀ U+2080, ₀ SUBSCRIPT ZERO ← ⁿ [U+207F] Superscripts and Subscripts ₁ → [U+2081]

０ U+FF10, ０ FULLWIDTH DIGIT ZERO ← ／ [U+FF0F] Halfwidth and Fullwidth Forms １ → [U+FF11]

𝟎 U+1D7CE, 𝟎 MATHEMATICAL BOLD DIGIT ZERO [unassigned: U+1D7CC–U+1D7CD] ← 𝟋 [U+1D7CB] Mathematical Alphanumeric Symbols 𝟏 → [U+1D7CF]

𝟘 U+1D7D8, 𝟘 MATHEMATICAL DOUBLE-STRUCK DIGIT ZERO ← 𝟗 [U+1D7D7] Mathematical Alphanumeric Symbols 𝟙 → [U+1D7D9]

𝟢 U+1D7E2, 𝟢 MATHEMATICAL SANS-SERIF DIGIT ZERO ← 𝟡 [U+1D7E1] Mathematical Alphanumeric Symbols 𝟣 → [U+1D7E3]

𝟬 U+1D7EC, 𝟬 MATHEMATICAL SANS-SERIF BOLD DIGIT ZERO ← 𝟫 [U+1D7EB] Mathematical Alphanumeric Symbols 𝟭 → [U+1D7ED]

𝟶 U+1D7F6, 𝟶 MATHEMATICAL MONOSPACE DIGIT ZERO ← 𝟵 [U+1D7F5] Mathematical Alphanumeric Symbols 𝟷 → [U+1D7F7]

Translingual

Etymology

Tenth century “West Arabic” variation of the Nepali form of Hindu-Arabic numeral ‫٠ (0)‬ (compare Devanāgarī script ०), 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.

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

4. (mathematics, computer science) A Boolean or truth value corresponding to false.

   f : B^k → 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.

Coordinate terms

• (Arabic digits): 0 1 2 3 4 5 6 7 8 9

Alternative forms

• Aegean numerals: please add, if you can
• Arabic (Eastern) numerals: ٠
• Arabic (Western) numerals: 0
• Armenian numerals: please add, if you can
• Assamese numerals: ০
• Balinese numerals: ᭐
• Bengali numerals: ০
• Brahmi numerals: n/a, (place notation) 𑁦
• Chakma numerals: 𑄶
• Cham numerals: ꩐
• Chinese numerals: 零, 〇
• CJK tally marks: 〇, (left blank)
• Counting rod numerals: 〇
• Devanagari numerals: ०
• Dhives Akuru numerals: 𑥐
• Egyptian numerals: 𓄤
• Ethiopic numerals: n/a
• Garay numerals: 𐵀
• Gothic numerals: n/a
• Greek numerals: n/a
• Gujarati numerals: ૦
• Gurmukhi numerals: ੦
• Indic Siyaq numerals: please add, if you can
• Hanifi Rohingya numerals: 𐴰
• Hebrew numerals: n/a
• Javanese numerals: ꧐
• Kaktovik numerals: 𝋀
• Kannada numerals: ೦
• Kawi numerals: 𑽐
• Kayah Li numerals: ꤀
• Khmer numerals: ០
• Khudawadi numerals: 𑋰
• Lanna numerals: (secular) ᪀, (religious) ᪐
• Lao numerals: ໐
• Lepcha numerals: ᱀
• Limbu numerals: ᥆
• Malayalam numerals: ൦
• Maya numerals: 𝋠
• Mende Kikakui numerals: please add, if you can
• Meroitic cursive numerals: please add, if you can
• Meitei numerals: ꯰
• Mongolian numerals: ᠐
• Myanmar numerals: ၀
• N'Ko numerals: ߀
• Ol Chiki numerals: ᱐
• Old Persian numerals: n/a
• Odia numerals: ୦
• Osmanya numerals: 𐒠
• Ottoman Siyaq numerals: please add, if you can
• Pahawh Hmong numerals: please add, if you can
• Persian numerals: ۰
• Roman numerals: n/a
• Saurashtra numerals: ꣐
• Sharada numerals: 𑇐
• Sinhalese numerals: ෦
• Sundanese numerals: ᮰
• Takri numerals: 𑛀
• Tally marks: (left blank to denote zero)
• Tamil numerals: ೦
• Telugu numerals: ౦
• Thai numerals: ๐
• Tibetan numerals: ༠
• Tirhuta numerals: 𑓐
• Warang Citi numerals: 𑣠

Derived terms

Derived terms

• (select cardinal numbers containing ‘0’) 10, 20, 30, ..., 100, 101, 102, ..., 1000, ..., 10,000, 100,000, 1,000,000, ...
• (other select numbers containing ‘0’) -10, -1.01, -0.1, ..., 0.1, 0.01, 0.001, ...
• (select currency expressions containing ‘0’) $0, $0.01, $1.00

Gallery

• Styles
• 
  A vintage clock with numbers 1–11.
• 
  The digit ‘0’ in a digital seven segment display.

See also

Other representations of 0:

Morse code: ––––– Braille: ⠚

Signal flag (ICS and NATO):

Semaphore: After showing "numeric"

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English

Pronunciation

• (number, digit, “zero”):
  • enPR: zē'rō, IPA^(key): /ˈziːɹəʊ/
  • IPA^(key): /ˈzɪəɹəʊ/

  • Audio (US):

    (file)

  • Rhymes: -ɪəɹəʊ
• (digit, “oh”):
  • IPA^(key): /oʊ/
  • IPA^(key): /əʊ/
  • Rhymes: -əʊ

  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.

Derived terms

• 0th, the ordinal number form

See also

• 0 (number) in Wikipedia
• 1
• 2

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Chinese

Pronunciation

• Mandarin

  (Pinyin): líng (ling²)

  (Zhuyin): ㄌㄧㄥˊ

• Cantonese (Jyutping): ling⁴

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• Mandarin
  • (Standard Chinese)⁺
    • Hanyu Pinyin: líng
    • Zhuyin: ㄌㄧㄥˊ
    • Tongyong Pinyin: líng
    • Wade–Giles: ling²
    • Yale: líng
    • Gwoyeu Romatzyh: ling
    • Palladius: лин (lin)
    • Sinological IPA ^(key): /liŋ³⁵/
• Cantonese
  • (Standard Cantonese, Guangzhou–Hong Kong)⁺
    • Jyutping: ling⁴
    • Yale: lìhng
    • Cantonese Pinyin: ling⁴
    • Guangdong Romanization: ling⁴
    • Sinological IPA ^(key): /lɪŋ²¹/

Noun

(deprecated template usage) 0

1. zero
2. (gay slang) bottom

Related terms

• 0.5 (língdiǎnwǔ)
• 1 (yī)

Derived terms

(deprecated template usage)