cardinal number


Definition of cardinal number

1 : a number (such as 1, 5, 15) that is used in simple counting and that indicates how many elements there are in an assemblage — see Table of Numbers
2 : the property that a mathematical set has in common with all sets that can be put in one-to-one correspondence with it

First Known Use of cardinal number

1591, in the meaning defined at sense 1

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The first known use of cardinal number was in 1591

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More Definitions for cardinal number

cardinal number


English Language Learners Definition of cardinal number

: a number (such as 1, 2, or 3) that is used in simple counting and shows quantity

cardinal number


Kids Definition of cardinal number

: a number (as 1, 5, 22) that is used in simple counting and answers the question “how many?”

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More from Merriam-Webster on cardinal number

Spanish Central: Translation of cardinal number

Nglish: Translation of cardinal number for Spanish Speakers Encyclopedia article about cardinal number

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What made you want to look up cardinal number? Please tell us where you read or heard it (including the quote, if possible).


a shady place in a garden or forest

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