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cardinal

When referring to the high-ranking church official, "Cardinal" is often capitalized when used as a title before a name (e.g., Cardinal Richelieu). In mathematics, remember that 'cardinal' refers to quantity (how many), while 'ordinal' refers to position (first, second, third). When used as an adjective for color, it describes a deep, vivid red, often associated with the robes of Catholic cardinals.

💬Casual Conversation

🎬Tuesday afternoon, Jessica is frantically organizing a project board while Mark is hiding in the breakroom.

Jessica

Mark, you missed the deadline. That's a cardinal sin in this office.

Mark

chill out jess, i'm just vibing until the wifi kicks back in.

💡

Jessica uses 'cardinal sin' as an idiom meaning a fundamental or grave mistake, reflecting her high-stress personality. Mark responds with 'vibing' (slang for relaxing/chilling) and 'chill out', contrasting his slacker persona with her anxiety.

Meanings

adjective

Of greatest importance; fundamental.

"The cardinal rule of journalism is to verify your sources."

adjective

Of a bright red color.

"She wore a cardinal red coat to the winter gala."

noun

A high-ranking official of the Catholic Church, next in rank to bishops.

"The Cardinal presided over the liturgical ceremony at the cathedral."

noun

Any of several brightly colored birds of the family Cardinalidae, especially the bright red North American species.

"A bright red cardinal perched on the snow-covered branch."

noun

A number used for counting (1, 2, 3...), as opposed to an ordinal number.

"In mathematics, a cardinal number describes the size of a set."

Last Updated: May 22, 2026•Report an Error