WordWeb Online

1. Make cool or cooler
   "cool down the food";
   - cool, chill
    
2. Lose intensity
   "His enthusiasm cooled down considerably";
   - cool, cool off
    
3. Lose heat
   "The air cooled down considerably after the thunderstorm";
   - cool, chill

Derived forms: cools down, cooling down, cooled down

Type of: alter, change, change state, modify, turn

Antonym: heat

Encyclopedia: Cool down