cardinal number
Cardinal numbers indicate quantity and are fundamental in mathematics and everyday counting.
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Definition
A2General
(common)A number that shows quantity, like one, two, or three.
Example
- She has three apples.
- The classroom has twenty students.
C1Mathematics
(technical)A measure of the size of a set, indicating how many elements it contains.
Example
- The set {a, b, c} has a cardinality of 3.
- The set of natural numbers has a cardinality of ℵ₀.
B1Grammar
(linguistics)A word that expresses a countable quantity.
Example
- In the sentence 'I have two dogs,' 'two' is a cardinal number.
Similar
Terms that have similar or relatively close meanings to "cardinal number":
ordinal numbercardinal bishopnatural numbercardinal sincardinal beetlecardinal symptom