chill

noun
A moderate, but uncomfortable and penetrating coldness.A sudden penetrating sense of cold, especially one that causes a brief trembling nerve response through the body; the trembling response itself; often associated with illness: fevers and chills, or susceptibility to illness.An uncomfortable and numbing sense of fear, dread, anxiety, or alarm, often one that is sudden and usually accompanied by a trembling nerve response resembling the body's response to biting cold.An iron mould or portion of a mould, serving to cool rapidly, and so to harden, the surface of molten iron brought in contact with it.The hardened part of a casting, such as the tread of a carriage wheel.A lack of warmth and cordiality; unfriendliness.Calmness; equanimity.A sense of style; trendiness; savoir faire.

verb
To lower the temperature of something; to coolTo become coldTo harden a metal surface by sudden coolingTo become hard by rapid coolingTo relax, lie backTo "hang", hang out; to spend time with another person or group. Also chill out.To smoke marijuanaTo discourage, depress

adjective
Moderately cold or chilly.Unwelcoming; not cordial.Calm, relaxed, easygoing."Cool"; meeting a certain hip standard or garnering the approval of a certain peer group.Okay, not a problem.