Meaning of “cardinal” in the English Dictionary

"cardinal" in British English

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cardinalnoun [ C ]

uk /ˈkɑː.dɪ.nəl/ us /ˈkɑːr.dɪ.nəl/

cardinaladjective [ before noun ]

uk /ˈkɑː.dɪ.nəl/ us /ˈkɑːr.dɪ.nəl/

(Definition of “cardinal” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"cardinal" in American English

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cardinalnoun [ C ]

us /ˈkɑr·dən·əl/

cardinal noun [ C ] (PRIEST)

a priest of high rank in the Roman Catholic Church

cardinal noun [ C ] (BIRD)

a North American bird, the male of which has bright red feathers and a black face

cardinaladjective

us /ˈkɑrd·ən·əl/

cardinal adjective (IMPORTANT)

of great importance; main:

Finding food was a cardinal concern.

(Definition of “cardinal” from the Cambridge Academic Content Dictionary © Cambridge University Press)