[huī shǒu]
wave; wave one's hand
wave farewell; wave one's hand on departure; wave away; wave good-bye to sb.
挥手告别
wave greetings to; wave to sb. in acknowledgement; waving one's hand to bid sb. farewell
挥手致意
give a hint by waving the hand
挥手示意
The policeman waved the traffic on.
警察挥手示意车辆行进。