chill in WordNet English dictionary

1. coldness due to a cold environment
   chill  iciness  gelidity 
   
2. a sudden numbing dread
   chill  pall 
   
3. an almost pleasurable sensation of fright
   "a frisson of surprise shot through him"
   frisson  shiver  chill  quiver  shudder  thrill  tingle 
   
4. a sensation of cold that often marks the start of an infection and the development of a fever
   chill  shivering 
   

1. loose heat
   "The air cooled considerably after the thunderstorm"
   cool  chill  cool down 
   
2. make cool or cooler
   "Chill the food"
   cool  chill  cool down 
   
3. depress or discourage
   "The news of the city's surrender chilled the soldiers"
   chill