to cool down; to get cold; to cool off (excitement, temper, etc.); to subside; to be cold (eyes, expression, etc.); to be composed
to cool (e.g. from a high temperature to room temperature); to let cool; to dampen; to throw a damper on; to spoil
lingering (usu. feeling, emotion, etc.); continuing (to); still (...)
the heat is off; things calm down; the excitement dies down
to lose interest (in); to grow less enthusiastic
medicine for reducing fever; antifebrile; antipyretic; febrifuge
to be a wet-blanket; to spoil a person's pleasure