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The cardinal rule in working with large powerful animals is never to take any risks.
a cardinal error
This is the British English definition of cardinal. View American English definition of cardinal.
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View the pronunciation for cardinal.
American English version of definition of cardinal
a paid holiday given to a new employee before they start their job
relating to the work of a rabbi
an expandable stick which you attach to a mobile phone or camera to help you take a selfie …
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Definition of cardinal from the online English dictionary from Macmillan Publishers Limited.