1. third person singular present of cool; becomes or makes less hot
2. third person singular present of cool; becomes or makes less intense or excited

Examples

• The soup cools quickly in the refrigerator.
• She cools the cake on a wire rack.
• The engine cools down after driving.
• He cools his temper before speaking.
• The weather cools in the evening.
• The fan cools the room effectively.