Word.ws English Dictionary

cardinality

UK/kɑːdɪˈnælɪti//kɑɹdɪˈnælɪti/

cardinality noun: the number of elements a given set contains.

Noun

cardinality (countable and uncountable, plural cardinalities)

  1. The number of elements a given set contains.
    • The empty set has a cardinality of zero.
    • The cardinality of a set A is the least ordinal α such that there exists a bijection between A and α. We sometimes use the notation #92;alpha#61;#124;A#124; to indicate this.2005, Johan de Jong, “Set Theory”, in The Stacks Project, retrieved 26 Feb 2018
    Synonyms:
    power
  2. (type theory) The number of terms that can inhabit a type; the possible values of a type.
    • For many types, such as String, the set of possible values is unlimited. Such types have an infinite cardinality.2021, Martin Odersky et al., chapter 19, in Programming in Scala, 5th edition, Artima, →ISBN
  3. (data modeling) The property of a relationship between a database table and another one, specifying whether it is one-to-one, one-to-many, many-to-one, or many-to-many.
  4. The status of being cardinalitial

cardinality meaning in Hindi, Tamil, Thai and Vietnamese

cardinality in Hindi

(set theory) number of elements a given set contains
प्रमुखता pramukhtā

cardinality in Tamil

(set theory) number of elements a given set contains
எண் அளவை eṇ aḷavai

cardinality in Thai

(set theory) number of elements a given set contains
ภาวะเชิงการนับ p̣hāwa cheing kār nạb

cardinality in Vietnamese

(set theory) number of elements a given set contains
lực lượng, lực lượng của một tập hợp

Examples of cardinality in a sentence

  • For this reason we sometimes say that equivalent sets have the same cardinality.
  • Consequently these sets have the same cardinality.
  • The Lebesgue null sets include not only all countable sets but many sets having the cardinality of the continuum.

All 12 example sentences with cardinality

Synonyms of cardinality

Forms of cardinality

pluralcardinalities

Origin of cardinality

From cardinal + -ity.

Questions about cardinality

What does cardinality mean?
Cardinality means the number of elements a given set contains.
What is cardinality in Hindi?
Cardinality in Hindi is प्रमुखता (pramukhtā). See Cardinality meaning in Hindi.
What part of speech is cardinality?
Cardinality is a noun.
How do you pronounce cardinality?
Cardinality is pronounced /kɑːdɪˈnælɪti/ (UK).
What is the plural of cardinality?
The plural of cardinality is cardinalities.

Words near cardinality in the dictionary

  1. cardinalising
  2. cardinalist
  3. cardinalists
  4. cardinalitial
  5. cardinalities
  6. cardinality
  7. cardinalization
  8. cardinalizations
  9. cardinalize
  10. cardinalized
  11. cardinalizes

Source and license

Adapted from Wiktionary: cardinality (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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