noun

cardinal

cardinal, fundamental

The Pope appointed a new cardinal.

The Pope appointed a new cardinal.

The cardinal rule is to always be honest.

The cardinal rule is to always be honest.

((a/an)) cardinal a type of priest or bird The Pope appointed a new cardinal.

((a/an)) cardinal ((noun)) a fundamental or main (noun) The cardinal rule is to be honest.

Synonyms (adjective): fundamental, principal, primary, chief. Synonyms (noun): bishop, priest.

From Latin 'cardinalis' meaning 'principal, pivotal', which comes from 'cardo' meaning 'hinge'. The idea is something on which other things 'hinge' or depend.

A 'cardinal' rule is the 'hinge' on which everything else turns. Also, associate the cardinal's red robes with the red cardinal bird.

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