1
See also: 1̂, !1, 1., l, ӏ, I, 𐑑, and ↿
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Character variations
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Translingual
Etymology
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
![](Images/wiktionary/Seven_segment_display_1_digit_(black).svg.png.webp)
The digit ‘1’ in a digital seven segment display.
1 (previous 0, next 2)
- 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.
Alternative forms
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:
- Armenian numerals: Ա
- Brahmi numerals: 𑁒
- Chinese numerals: 壹, 一
- CJK tally marks: 𝍲
- Counting rod numerals: 𝍩
- Egyptian numerals: 𓏺
- Ethiopic numerals: ፩
- Gothic numerals: 𐌰
- Greek numerals: Α΄, α΄
- Hebrew numerals: א
- Old Persian numerals: 𐏑
- Roman numerals: I, i
- Sinhalese numerals: 𑇡
- Tally marks: 𝍷
Derived terms
Derived terms
- (select cardinal numbers containing ‘1’) 10, 11, 12, ..., 100, 101, 102, ..., 1000, ..., 10,000, 100,000, 1,000,000, ...
- (other select numbers containing ‘1’) -10, -1, -0.1, ..., 0.1, 0.01, 0.001, ...
- +1
See also
- 1 (number) in Wikipedia
- (Arabic digits): 0 1 2 3 4 5 6 7 8 9
Other representations of 1:
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English
Pronunciation
- enPR: wŭn, IPA(key): /wʌn/, IPA(key): /wan/
Audio (US) (file) - Rhymes: -ʌn
Symbol
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
- (sarcastic, deliberate misspelling of !): one, eleven
Derived terms
- (ordinal) 1st
Noun
1 (plural 1s)
- (sports, skateboarding, snowboarding, skiing) Clipping of 180. (180° spin)
Translations
deliberate misspelling of !
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Chinese
Pronunciation
Noun
1
- one
- (gay slang) top
Derived terms
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Related terms
- 0 (líng)
- 0.5 (língdiǎnwǔ)
Swedish
![](Images/wiktionary/Apotek_1%252C_Fr%C3%B6lunda_Torg.jpg.webp)
The Nordic pharmacy chain Apotek1.
Symbol
1
- The number one (1).
- Synonyms: ett, en
- (Internet slang, leetspeak, sarcastic) Deliberate misspelling of !
Suffix
1
- (nonstandard stylistic suffix) -et (“singular indefinite nominative; the”)
- Apotek1
- The Pharmacy
- Bud1
- The Courier