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Word of the Day Wednesday, June 10, 2026

cardio

/kɑːrˈdaɪoʊ/ noun · British & US
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What does cardio mean?

noun

The study of the function and disorders of the heart and circulatory system, or physical exercise that raises the heart rate and improves cardiovascular fitness.

Example

"Regular cardio exercise can help improve overall health and reduce the risk of heart disease."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for cardio

Antonyms of cardio

Rhymes with cardio

Etymologically related