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

0 U+0030, 0
DIGIT ZERO
/
[U+002F]
Basic Latin 1
[U+0031]
The slashed variant of the digit

Translingual

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Alternative forms

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Glyph origin

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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. See 0 § History for more.

Symbol

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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.
     
  4. (mathematics, computer science) 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.
  6. (phonetics, often superscript) 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)
  7. (phonetics, Sinosphere, often superscript) lack of an inherent tone; the pitch depends on the tones of the surrounding syllables.

Alternative forms

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The following forms are equivalent as a decimal digit:

The additional following forms are equivalent as a cardinal number:

Derived terms

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Gallery

See also

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Other representations of 0:

English

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Pronunciation

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Noun

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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

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See also

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Chinese

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Etymology 1

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Pronunciation

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Noun

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0

  1. (gay slang) bottom
    公司0宣傳0宣傳 [MSC, trad.]
    公司0宣传0宣传 [MSC, simp.]
    gōngsī líng xuānchuán, quán kào líng xuānchuán [Pinyin]
    zero advertisement from the record company, entirely relying on bottoms for advertisement (jocular statement referring to Wang Xinling's fandom)
Synonyms
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  • (Hong Kong Cantonese) 0仔 (ling4 zai2)
Derived terms
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  • 0.5 (língdiǎnwǔ)
  • 1 ()

Etymology 2

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Grammaticisation of (zero).

Pronunciation

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Particle

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0

  1. (Hong Kong Cantonese, Internet slang, neologism) A negation particle (clarification of this definition is needed)

References

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  • 2024, 陳詠儀 [Wing Yee Chan], 唐翊竣 [Yik Chun Tong], 謝家朗 [Ka Long Tse], “香港粵語否定詞“0”的語法特徵 [Grammatical Features of the Negative Word "0" in Hong Kong Cantonese]”, in 《中國語文通訊》, volume 103, number 1, →DOI, pages 43-65: