cardinal number

English · Thesaurus

AI In plain words

Writing a short explanation…

Written by a house AI from the entry below, in your language. The entry itself is the source.

cardinal number

noun cardinal numbers

  1. A number used to denote quantity; a counting number; a cardinal. The smallest cardinal numbers are 0, 1, 2, and 3.

    Similar: cardinal, word

  2. A generalized kind of number used to denote the size of a set, including infinite sets. This cardinal number is the smallest of the infinite cardinal numbers; it is the one to which Cantor has appropriated the Hebrew Aleph with the suffix 0, to distinguish it from larger infinite cardinals. Thus the name of the smallest of infinite cardinals is ℵ₀.
  3. A word that expresses a countable quantity; a cardinal numeral. “Three” is a cardinal number, while “third” is an ordinal number.

Translations

Every language

noun number used to denote the size of a set

Españolnúmero cardinal
日本語集合数 shūgōsū, 基数 kisū
Portuguêsnúmero cardinal
Françaisnombre cardinal
DeutschKardinalzahl
Italianonumero cardinale
Românăcardinal
Русскиймо́щность мно́жества móščnostʹ mnóžestva, кардина́льное число́ kardinálʹnoje čisló
Tiếng Việtsố lượng

noun number denoting quantity

Españolnúmero cardinal
한국어기수 gisu
日本語基数 kisū
中文基數 /基数 jīshù
Portuguêsnúmero cardinal
Françaisnombre cardinal
DeutschKardinalzahl, Grundzahl
Italianonumero cardinale
Ελληνικάαπόλυτος αριθμός apólytos arithmós
Românănumeral cardinal, număr cardinal
Русскийкардина́льное число́ kardinálʹnoje čisló
Tiếng Việtsố đếm

Talk about this word

Cite this
MLA

"cardinal number." Wiktionary, via Micwyn, micwyn.com/word/cardinal%20number. Accessed 6 Nov. 2026.

APA

cardinal number. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/cardinal%20number

Chicago

"cardinal number." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/cardinal%20number.

BibTeX
@misc{cardinal_number_2026,
  title = {cardinal number},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/cardinal%20number},
  urldate = {2026-11-06}
}