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Cardinal (adjective)
Of fundamental importance; crucial, pivotal.
“a cardinal rule”
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Cardinal (adjective)
Of or relating to the cardinal directions (north, south, east and west).
“a cardinal mark”
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Cardinal (adjective)
Describing a “natural” number used to indicate quantity (e.g., one, two, three), as opposed to an ordinal number indicating relative position.
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Cardinal (adjective)
Having a bright red color (from the color of a Catholic cardinal’s cassock).
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Cardinal (noun)
A number indicating quantity, or the size of a set, e.g., one, two, three. Wikipedia article on Cardinal number]].
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Cardinal (noun)
A word used to represent a cardinal number; a cardinal numeral.
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Cardinal (noun)
An official in the Catholic Church, ranking only below the Pope and the Wikipedia article on Catholic cardinals.)
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Cardinal (noun)
Any of a genus of songbirds of the finch family, Cardinalis.
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Cardinal (noun)
Any of various related Wikipedia article on cardinals) and other similar birds that were once considered to be related.
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Cardinal (noun)
A shade of scarlet, the traditional colour of a Catholic cardinal’s cassock.
“color panel|C41E3A”
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Cardinal (noun)
A woman’s short cloak with a hood.
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Cardinal (noun)
Mulled red wine.
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Cardinal (noun)
A freshwater fish, the cardinal tetra (noshow=1).
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Redbird (noun)
Any of several unrelated American songbirds having red plumage, especially the tanager or cardinal. from 17th c.
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Redbird (noun)
A capsule of secobarbital. from 20th c.
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Redbird (noun)
Any of various red cars formerly used in the New York City subway system; or a train of such cars.