# cardinal number

## noun

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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Merriam-Webster unabridged
## Share