v (1)点头(表示同意或打招呼等) (make a quick forward and downward movement of the head to show agreement，as a greeting，etc)[I，I+prep(to/at)，T+n]：I asked him if he agreed and he～ded.我问他是否同意，他点头表示同意。She～ded without saying anything. 她点点头什么也没说。 “Were you at college?” She～ded. “那时候你在上大学吗?”她点点头。The two men～ded at each other. 两人互相点头致意。The old man～ded his head at this man and smiled. 老人向这人点头微笑。Parkin～ded at the town hall. “Did you go inside the place，Smiler?” 帕金朝市政厅点点头，问道：“斯迈勒，你是到那里去了吗?”She～ded to me in a friendly fashion. 她友好地朝我点点头。She～ded to us from across the room. 她从房间的那一边向我们点点头。He～ded his head in approval. 他点头表示赞同。She smiled and～ded her head. 她笑了笑，点点头。〖同〗greet，salute;

(2)点头表示;向……点头示意(show by nodding)[T+n，D+n+n，D+n+prep (to)，C+to+n+to-inf]：～one's agreement/understanding/approval/O.K/yes/thanks点头表示同意/理解/赞同/同意/同意/感谢;He～ded her a welcome. 他向她点头表示欢迎。 He～ded a welcome to her. 他向她点头表示欢迎。She～ded me to her. 她点点头要我过去。The manager～ded to his secretary to come in. 经理点头示意让秘书进去。She had just～ded to me to show me that she had seen that man.她对我点点头表示她已经看到那人。〖同〗signal，beckon，motion，sign，gesture;

(3)打盹，瞌睡 (allow one's head to fall loosely when falling asleep)[I]：Most of the passengers were～ding in their seats. 绝大多数乘客都坐在座位上打盹。 We～ded as the speech dragged on. 讲演没完没了，我们听得直打瞌睡。Grandmother sat～ding by the fire. 奶奶坐在炉火旁打瞌睡。I～ded off in the meeting and did not hear what was said. 我开会时打瞌睡了，没听见都说了些什么。〖同〗doze，drowse;

(4)(花朵等)上下(或前后)摆动((of flowers，etc) droop，sway，or bend downward)[I]：flowers～ding in the wind 在风中摇曳的花枝;scarlet flowers～ding on long，frail stems 鲜红的花朵在细长的花梗上摇晃;The tree is～ding to its fall in the wind. 那棵树在风中摇摇欲坠。

(5)不小心而弄错(make a careless slip)[I]：Homer sometimes～s.(prov) 智者千虑，必有一失。

have a nodding acquaintance with sb/sth与……有点头之交;对……略知一二：I have a～ding acquaintance with some of the staff here. 我和这儿的一些人员只有点头之交。He has a～ding acquaintance with Greek literature. 他对希腊文学略知一二。

n (1)点头(up and down movement of the head，usu as a greeting or to show agreement，etc)[C]：He looked across the room at his mother who gave him a～of encouragement. 他看了看房间那边的妈妈，妈妈向他点头表示鼓励。 He answered with a～. 他点头应允。His～means a higher bid. 他点头意味着出高价。At a～from the chief，the policewoman left. 警长点头示意后，女警察走了。A～is as good as a wink (to a blind horse). (prov)暗示足已，不必明言。〖同〗signal，sign，gesture;

on the nod(infml) (BrE) 1)(不经讨论)正式批准(认可)：The act was sanctioned on the～last night. 这项法案是昨晚大家点头通过的。2)用赊购办法：get sth on the～ 赊购某物