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Definition of cardio

cardio

/ˈkɑːrdi.oʊ/
car · di · o
Adjective:cardiovascular
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cardio Lexical Profile

cardio Game Scores & Validity

• noun

1

Physical exercise that raises the heart rate and respiration to strengthen the cardiovascular system, such as running, cycling, or swimming.

Example

"Doing thirty minutes of cardio several times a week can significantly improve overall stamina."

Synonyms
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Antonyms
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• adjective

1

Relating to or involving physical exercise designed to improve the efficiency of the heart and lungs.

Example

"She signed up for an intensive cardio workout class at the community center."

Synonyms
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Antonyms
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• Nearby Words

cardinal tetra
cardinalfish
carding
cardio
cardiologist
cardiology
cardiovascular

Word Origin & Etymology

Shortened in the late 20th century from 'cardiovascular,' which derives from the Ancient Greek 'kardia' (meaning 'heart') combined with the Latin 'vasculum' (meaning 'small vessel').

Cite this Entry

Wordmom. (2026). Definition of Cardio. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/cardio
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