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basis - Wiktionary, the free dictionary

Jan 20, 2026 · (topology) A collection of subsets ("basis elements") of a set, such that this collection covers the set, and for any two basis elements which both contain an element of the set, there is a third basis ...

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basis - WordReference.com Dictionary of English

a basic fact, amount, standard, etc., used in making computations, reaching conclusions, or the like: The nurse is paid on an hourly basis. He was chosen on the basis of his college grades.

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Basis - definition of basis by The Free Dictionary

1. a bottom or base; the part on which something stands or rests. 2. anything upon which something is based; a fundamental principle. 3. the principal constituent; fundamental ingredient.