Definition

Of primary importance or fundamental significance; essential.

Example

Honesty is a cardinal virtue in any relationship.

Conversation

Did you know that red is considered a cardinal color in art?

Really? I always thought it was just a common color.

Nope, it has a cardinal significance when it comes to emotions.

That makes sense! It really stands out in a lot of paintings.

Synonyms & Antonyms

Definition

A type of number used in counting, a bright red bird found in North America, or a high-ranking official in the Roman Catholic Church.

Example

The cardinal flew gracefully through the trees, its bright red feathers standing out against the green leaves.

Conversation

Did you see that bright red bird in the garden?

Yeah, I think it was a cardinal.

I love how vivid their color is during the spring.

Root Explanation

Cardinal is derived from the Latin word "cardinalis" (meaning principal or chief), which comes from "cardo" (meaning hinge). The term originally referred to something that is essential or pivotal, much like a hinge is crucial for the function of a door.

Memory Tip

Think of a 'hinge' ('cardo') that is essential for a door to function — that's why 'cardinal' refers to something that is fundamental or principal.

Visually Confused Words