1
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Character variations
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Translingual[edit]
Etymology[edit]
Tenth century “West Arabic” variation of the Nepali form of Hindu-Arabic numerals (compare Devanagari script १ (1, “éka”)), possibly influenced by Roman numeral Ⅰ.
Symbol[edit]

- The cardinal number one, a single thing or unit.
- A digit in decimal and every other base numbering system, including binary, octal, and hexadecimal.
- 15 × 134 = 2010
- 0010 00112 (the number 35 in binary notation)
- 0x1000E001 (the number 268492801 in hexadecimal notation)
- (mathematics) The identity element with respect to multiplication in a ring.
- a×1 = a
- (computer science) Bit state corresponding to binary digit 1, or on or true.
- (mathematics) A Boolean or truth value corresponding to true.
- f : Bk → B : B = {0, 1}
- (mathematics) The one-point topological space, trivial ring, trivial group, a category with a single object or a (canonical) singleton.
- (mathematics, set theory) indicator function of a set.
- (phonetics) the pitch of a tone, either high or low depending on local convention; '1' is most commonly the highest or lowest pitch (but see 0)
- (phonetics, Sinosphere) tone number 1, typically identified with dark level yin ping (陰平). May simply be level ping tone (平) if the yin–yang distinction is not made.
- Synonym: ꜀
Alternative forms[edit]
The following forms are equivalent as a decimal digit:
- Arabic (Eastern) numerals: ١
- Arabic (Western) numerals: 1
- Assamese numerals: ১
- Balinese numerals: ᭑
- Bengali numerals: ১
- Brahmi numerals: 𑁧
- Chakma numerals: 𑄷
- Cham numerals: ꩑
- Devanagari numerals: १
- Gujarati numerals: ૧
- Gurmukhi numerals: ੧
- Hanifi Rohingya numerals: 𐴱
- Javanese numerals: ꧑
- Kannada numerals: ೧
- Kayah Li numerals: ꤁
- Khmer numerals: ១
- Khudawadi numerals: 𑋱
- Lanna numerals: (secular) ᪁, (Tham) ᪑
- Lao numerals: ໑
- Lepcha numerals: ᱁
- Limbu numerals: ᥇
- Malayalam numerals: ൧
- Meitei numerals: ꯱
- Mongolian numerals: ᠑
- Myanmar numerals: ၁
- N'Ko numerals: ߁
- Ol Chiki numerals: ᱑
- Oriya numerals: ୧
- Osmanya numerals: 𐒡
- Persian numerals: ۱
- Saurashtra numerals: ꣑
- Sharada numerals: 𑇑
- Sinhalese numerals: ෧
- Sundanese numerals: ᮱
- Takri numerals: 𑛁
- Tamil numerals: ௧
- Telugu numerals: ౧
- Thai numerals: ๑
- Tibetan numerals: ༡
- Tirhuta numerals: 𑓑
- Warang Citi numerals: 𑣡
The following additional forms are equivalent as a cardinal number:
Derived terms[edit]
Derived terms
See also[edit]
Other representations of 1:
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English[edit]
Pronunciation[edit]
Symbol[edit]
1
- The number one (1).
- (Internet slang, leetspeak, sarcastic) Deliberate misspelling of !, imitating someone who is too excited to consistently press the shift key while typing exclamation marks.
- A: sum1 hlep me plz im alwyz l0zin!!1!?!/?
- B: Thts bcuz ur st00pid!!!!!11!!oneone!!1!!eleven!1
Synonyms[edit]
Derived terms[edit]
- (ordinal) 1st
Noun[edit]
1 (plural 1s)
- (sports, skateboarding, snowboarding, skiing) Clipping of 180. (180° spin)
Translations[edit]
Chinese[edit]
Pronunciation[edit]
Noun[edit]
1
Derived terms[edit]
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Related terms[edit]
Swedish[edit]

Symbol[edit]
1
Suffix[edit]
1
- (nonstandard stylistic suffix) -et (“singular indefinite nominative; the”)
- Apotek1
- The Pharmacy
- Bud1
- The Courier
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