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Learn about the first natural number, its properties, and its uses in mathematics, computer science, and other fields. See how 1 is written and pronounced in different languages and numeral systems.
- one
- 1st, (first)
- 1
- unary
being or amounting to a single unit or individual or entire thing, item, or object rather than two or more; a single: one woman; one nation; one piece of cake. being a person, thing, or individual instance or member of a number, kind, group, or category indicated: one member of the party.
Let's explore various ways to represent the number 1 as a fraction, like 1/1, 2/2, and 3/3. We see how dividing a whole into equal parts and shading them in can represent 1 whole. We also use a number line to visualize these fractions, emphasizing that they all represent the same value: 1 whole.
- 4 min
- Sal Khan
Learn the meaning and usage of the word one as a noun, pronoun, and adjective in English. Find out the synonyms, antonyms, idioms, and examples of one in different contexts.