/nɒd ||; nɑd/verb [I,T] (nodding;nodded) to move your head up and down as a way of saying ‘yes’ or as a sign to sb to do sth 点头（表示同意或作为信号）: Everybody at the meeting nodded in agreement. 与会者都点头表示同意。 Nod your head if you understand what I'm saying and shake it if you don't. 明白我说的话就点点头，不明白就摇摇头。 ☞picture on page S19 见S19页插图 nod noun [C] nod off(informal 非正式) to fall asleep for a short time 打瞌睡；睡着