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English definition of “cardinal”

cardinal

noun [C] (NUMBER) (also cardinal number)     /ˈkɑː.dɪ.nəl/ US  /ˈkɑːr-/
a number that represents amount, such as 1, 2, 3, rather than order, such as 1st, 2nd, 3rd → Compare ordinalNumbers generally
(Definition of cardinal noun (NUMBER) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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