I'll turn on the heat for a bit, just to 'take the chill off'. [=raise the temperature slightly to a comfortable level]
There has been a 'chill' in diplomatic relations. [=diplomatic relations have grown colder]
He thinks his parents are way too uptight and says they should just 'chill'.
(..) closing in about you. A hutch to trammel some wild thing in. So fair. So cold. Like a morning of pale spring... ...still clinging to winter's chill. Your words are poison. You'll find more cheer in a graveyard. I cannot allow you before Th'oden King so armed, Gandalf Greyhame. (..)2002 The Lord of the Rings: The Two Towers