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  1. 1 - Wikipedia

    1 (one, unit, unity) is a number, numeral, and grapheme. It is the first and smallest positive integer of the infinite sequence of natural numbers.

  2. 1 - Wiktionary, the free dictionary

    Jan 23, 2026 · 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, both ultimately …

  3. 1 (number) - New World Encyclopedia

    The glyph used today in the Western world to represent the number 1, a vertical line, often with a serif at the top and sometimes a short horizontal line at the bottom, traces its roots back to the Indians, who …

  4. 1 - definition of 1 by The Free Dictionary

    Noun 1. 1 - the smallest whole number or a numeral representing this number; "he has the one but will need a two and three to go with it"; "they had lunch...

  5. 1 Definition & Meaning - Merriam-Webster

    One John Doe made a speech. "Puma" and "cougar" are different names for one animal. The author and the main character are one and the same. : the first whole number above zero see Table of …

  6. What does 1 mean? - Definitions.net

    1 (one, also called unit, unity, and (multiplicative) identity) is a number, and a numerical digit used to represent that number in numerals. It represents a single entity, the unit of counting or measurement.

  7. About The Number 1 - numeraly.com

    The number 1 is unique in many ways, and holds a fascinating position in the world of mathematics, science, and culture. As the first whole number, it is the foundation for all other numbers and serves …

  8. 1 -- from Wolfram MathWorld

    Jan 29, 2026 · Although the number 1 used to be considered a prime number, it requires special treatment in so many definitions and applications involving primes greater than or equal to 2 that it is …

  9. 1 - Definition, Meaning & Synonyms | Vocabulary.com

    1 Definitions of 1 noun the smallest whole number or a numeral representing this number synonyms: I, ace, one, single, unity

  10. 1 (number) - Simple English Wikipedia, the free encyclopedia

    1 (number) ... Chinese hand sign 0:01 Pronunciation of the number 1. One (1) is the first natural number, followed by two, then followed by three. The Roman numeral for one is I. Babylonian number 1