English definition of “cool (sb/sth) down/off”
cool (sb/sth) down/off — Phrasal Verb with cool
/kuːl/ verb [I, T]
LESS HOT › to become less hot, or to make someone or something become less hot: We went for a swim to cool off.
CALMER › to become calmer, or to make someone become calmer: Leave her to cool off and then talk to her.