What is Chill ?
Chill is (noun) 1. an illness caused by cold You’ll catch a chill if you don’t wear a coat. 2. coldness The sun came up and soon cleared away the morning chill. 3. an atmosphere of gloom The death of the bride’s father cast a chill over the wedding. (verb) to cool He asked for a glass of chilled orange juice. chilled to the bone very cold (informal.) They were chilled to the bone when they came back from their walk over the moors.
source: Easier English, Student Dictionary Upper Intermediate Level