词典释义：
[no obj.]lower and raise one's head slightly and briefly, especially in greeting, assent, or understanding, or to give someone a signal
点头（尤用于问候，赞同，理解或向某人示意）
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he nodded to Mona to unlock the door 他点头示意莫娜把门打开
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[with obj.]
she nodded her head in agreement .她点头表示同意。
[with obj.]signify or express (greeting, assent, or understanding) in this way
点头表示（问候，赞同，理解）
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he nodded his consent .他点头表示赞同。
[no obj., with adverbial of direction]draw or direct attention to someone or something by moving one's head
点头（以引起对某人或某物的注意）
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he nodded towards the corner of the room .他朝房间的角落点点头。
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〈非正式〉 未经讨论而一致通过
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the DTI nodded through the bid from Airtours .贸易工业部点头同意了空旅公司的投标。
move one's head up and down repeatedly
反复点头
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he shut his eyes, nodding to the beat 他闭着眼睛，跟着节拍点头
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figurative 〈喻〉foxgloves nodding by the path .在小路边点着头的毛地黄花。
[no obj.]let one's head fall forward when drowsy or asleep
（垂头）打瞌睡
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Anna nodded over her book .安娜对着书本垂头打瞌睡。
make a mistake due to a momentary lack of alertness or attention
一时疏忽
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scientific reason, like Homer, sometimes nods .科学推理，就像荷马，有时也会出错。[ORIGIN: with allusion to Latin <Italic>dormitat Homerus</Italic> (Horace <Italic>Ars Poet. 359</Italic>).]
[with obj. and adverbial of direction]
【英足】 顶（球）。
an act of nodding the head
点头
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at a nod from his father he left the room .父亲点了头后，他就离开了房间。
〈喻〉 同意；让步
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the device is a nod to the conventions of slapstick .那种策略是对闹剧习俗的认可。
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a nodding acquaintance a slight acquaintance with a person or knowledge of a subject （与某人）点头之交；（对某物）略知一二students will need a nodding acquaintance with three other languages . 学生需要对其他三种语言略知一二 -
be on nodding terms know someone slightly （对某人）略有所知 -
get the nod 1 be selected or approved 获选；获准 -
2 receive a signal or information 获悉 -
give someone/thing the nod 1 select or approve someone or something 选中；批准they banned one book but gave the other the nod . 他们查禁了一本书却批准了另一本 -
2 give someone a signal 示意 -
a nod's as good as a wink to a blind horse proverb used to convey that a hint or suggestion can be or has been understood without the need of further elaboration or explanation 〈谚〉 不言自明 -
on the nod Brit. informal 〈英，非正式〉1 by general agreement and without discussion 未经讨论而一致通过parliamentary approval of the treaty went through on the nod .议会未经讨论便一致通过了该条约 -
2 dated on credit 〈旧〉 赊账 -
3 alternating between wakefulness and sleepiness on account of heroin use （因服用海洛因而）处于昏昏欲睡状态的
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nod off informal fall asleep, especially briefly or unintentionally 〈非正式〉 打瞌睡，打盹some of the congregation nodded off during the sermon . 在布道集会上有些人打起了瞌睡
"late Middle English （as a verb）： perhaps of Low German origin; compare with Middle High German
