A cardinal rule; cardinal sins.
A cardinal mark.
Smith became a Cardinal as the result of a pre-season trade.
A songbird with a red plume and stout bill is an example of a cardinal.
A deep scarlet color is an example of cardinal.
A Roman Catholic dignitary nominated by the Pope and held in high esteem within the church is an example of a Cardinal.
Origin of cardinal
- Middle English from Late Latin cardinālis principal, pivotal from Latin serving as a hinge from cardō cardin- hinge
From American Heritage Dictionary of the English Language, 5th Edition