| noun | the quality of being at a refreshingly low temperature “the cool of early morning” |
| noun | great coolness and composure under strain “keep your cool” |
| verb | make cool or cooler “Chill the food” |
| verb | loose heat “The air cooled considerably after the thunderstorm” |
| verb | lose intensity “His enthusiasm cooled considerably” |
| adjective | neither warm nor very cold; giving relief from heat “a cool autumn day” |
| adjective | marked by calm self-control (especially in trying circumstances); unemotional “play it cool” |
| adjective | (color) inducing the impression of coolness; used especially of greens and blues and violets “cool greens and blues and violets” |
| adjective | psychologically cool and unenthusiastic; unfriendly or unresponsive or showing dislike “relations were cool and polite” |
| adjective | (used of a number or sum) without exaggeration or qualification “a cool million bucks” |
| adjective | fashionable and attractive at the time; often skilled or socially adept “he's a cool dude” |
| cool | verb | loose heat |
| assured | adjective | characterized by certainty or security |
| poise | verb | prepare (oneself) for something unpleasant or difficult |
| cool | noun | the quality of being at a refreshingly low temperature |
| cooler | noun | an iced drink especially white wine and fruit juice |
| coolant | noun | a fluid agent (gas or liquid) that produces cooling; especially one used to cool a system by transferring heat away from one part to another |
| cooling | noun | the process of becoming cooler; a falling temperature |
| chill | noun | coldness due to a cold environment |
| chilling | noun | the process of becoming cooler; a falling temperature |
| coolness | noun | the property of being moderately cold |
| nervelessness | noun | fearless self-possession in the face of danger |