head

chief, head, leader, boss

这些名词都指“拥有权力或统治权的人”。
chief: 最广泛用词，上可指最高统治者，下可指顶头上司，也可指任何一级的头头。
head: 多指一个机构或团体等的负责人或最高首长。
leader: 指国家、民族、政党、组织等的领导或领袖。强调领导能力、含有能够引导、指导、控制被领导者并获得其支持的意味。
boss: 非正式用词，多作口语用，可指任何负责人，也可指经理、老板或工头。

名词 head:

1. the upper part of the human body or the front part of the body in animals; contains the face and brains
   同义词：caput
2. a single domestic animal
3. that which is responsible for one's thoughts and feelings; the seat of the faculty of reason
   同义词：mind, brain, psyche, nous
4. a person who is in charge
   同义词：chief, top dog
5. the front of a military formation or procession
6. the pressure exerted by a fluid
7. the top of something
8. the source of water from which a stream arises
   同义词：fountainhead, headspring
9. (grammar) the word in a grammatical constituent that plays the same grammatical role as the whole constituent
   同义词：head word
10. the tip of an abscess (where the pus accumulates)
11. the length or height based on the size of a human or animal head
12. a dense clusters of flowers or foliage
    同义词：capitulum
13. the educator who has executive authority for a school
    同义词：principal, school principal, head teacher
14. an individual person
15. a user of (usually soft) drugs
16. a natural elevation (especially a rocky one that juts out into the sea)
    同义词：promontory, headland, foreland
17. a rounded compact mass
18. the foam or froth that accumulates at the top when you pour an effervescent liquid into a container
19. the part in the front or nearest the viewer
    同义词：forefront
20. a difficult juncture
    同义词：pass, straits
21. forward movement
    同义词：headway
22. a V-shaped mark at one end of an arrow pointer
    同义词：point
23. the subject matter at issue
    同义词：question
24. a line of text serving to indicate what the passage below it is about
    同义词：heading, header
25. the rounded end of a bone that bits into a rounded cavity in another bone to form a joint
26. that part of a skeletal muscle that is away from the bone that it moves
27. (computer science) a tiny electromagnetic coil and metal pole used to write and read magnetic patterns on a disk
    同义词：read/write head
28. (usually plural) the obverse side of a coin that usually bears the representation of a person's head
29. the striking part of a tool
30. (nautical) a toilet on board a boat or ship
31. a projection out from one end
32. a membrane that is stretched taut over a drum
    同义词：drumhead
33. oral stimulation of the genitals
    同义词：oral sex

动词 head:

1. to go or travel towards
2. be in charge of
   同义词：lead
3. travel in front of; go in advance of others
   同义词：lead
4. be the first or leading member of (a group) and excel
   同义词：head up
5. direct the course; determine the direction of travelling
   同义词：steer, maneuver, manoeuver, manoeuvre, direct, point, guide, channelize, channelise
6. take its rise
7. be in the front of or on top of
8. form a head or come or grow to a head
9. remove the head of

1. The chapter was headed My Early Life'.
   这一章的标题是｀我早年的生活＇.
2. He is the head of our school.
   他是我们学校的校长。
3. We are heading home.
   我们正向家的方向走去。
4. Please raise your head and look at the blackboard.
   请抬起头来，看黑板。
5. He arranged his speech under four main heads.
   他把发言内容归纳成四个主要方面。

head

n.Abbr. hd.（名词）缩写 hd.

The uppermost or forwardmost part of the body of a vertebrate, containing the brain and the eyes, ears, nose, mouth, and jaws.
头部：脊椎动物身体的最高部或最前部，包括大脑、眼睛、耳朵、鼻子、嘴巴和下颌
The analogous part of an invertebrate organism.
头状物：无脊椎生物中类似的部分
The length or height of such a part:
头部的长度或高度：
例句：
The horse lost by a head. She is two heads taller than he is.
那匹马以一头之差输掉了；她比他高两头

The seat of the faculty of reason; intelligence, intellect, or mind:
推理：思考能力的中心；智力、才能或理智：
例句：
I did the figuring in my head.
我心算了一下

Mental ability or aptitude:
能力或天资：
例句：
She has a good head for mathematics.
她有数学天资

Freedom of choice or action:
选择或行动的自由：
例句：
Give the child his head and see how well he solves the problems.
让孩子自己干，看他能把问题解决得多好

Slang
【俚语】
A habitual drug user.
经常服用毒品的人
An enthusiast.
狂热爱好者
A portrait or representation of a person`s head.
头像：一个人物头部的肖像或艺术作品
Often heads (used with a sing. verb)The side of a coin having the principal design and the date.
常作 heads （与单数动词连用）正面：硬币上印有主要图案和日期的那一面
Informal A headache:
【非正式用语】 头痛：
例句：
had a bad head early this morning.
早晨头疼得很厉害

An individual; a person:
个人；人：
例句：
charged five dollars a head.
每人付五美元

head A single animal:
head 一头动物：
例句：
20 head of cattle.
二十头牛

A person who leads, rules, or is in charge; a leader, chief, or director:
首脑，领导，负责人：领导、统治或管理的人；领袖、头领或指导者：
例句：
the head of the corporation.
公司负责人

A headmaster or headmistress.
男校长，女校长
The foremost or leading position:
最前面或处于领导地位：
例句：
marched at the head of the parade.
在游行队伍的前列

A headwaiter.
侍者领班

The difference in depth of a liquid at two given points.
落差：液体中两个点深度上的差别
The measure of pressure at the lower point expressed in terms of this difference.
压差：用落差表示的在较低点所测量出的压力
The pressure exerted by a liquid or gas:
液压，气压：液体或气体产生的压力：
例句：
a head of steam.
蒸汽压

The liquid or gas exerting the pressure.
泡沫：产生压力的液体或气体
The froth or foam that rises to the top in pouring an effervescent liquid, such as beer.
酒沫：例如啤酒等冒泡液体浮到顶部的气泡或泡沫
The tip of an abscess, a boil, or a pimple, in which pus forms.
脓头：中间有脓液的脓疮、疖或丘疹的顶端
A turning point; a crisis:
转折点；危机：
例句：
bring matters to a head.See Synonyms at crisis
使事情到了紧要关头参见 crisis

A projection, weight, or fixture at the end of an elongated object:
突出物：一个细长物体顶端的凸起物、重物或固定物：
例句：
the head of a pin; a head of land overlooking the harbor.
大头针帽；俯瞰港口的岬角

Anatomy The proximal end of a long bone:
【解剖学】 长骨的近侧端：
例句：
the head of the femur.
股骨的圆头

The working end of a tool or an implement:
头状物：工具或器具上用来工作的一端：
例句：
the head of a hammer.
锤子头

The part of an explosive device that carries the explosive; a warhead.
子弹头：爆炸装置中装有炸药的部分；弹头

An attachment to or part of a machine that holds or contains the operative device.
附属品：机器上装有操作装置的部分或其附属物
The magnetic head of a tape recorder.
磁头：录音机中的磁头
A rounded, compact mass, as of leaves or buds:
紧密聚成一团的圆形树叶或花苞：
例句：
a head of cabbage.
一棵卷心菜

Botany A flower head.
【植物学】 头状花序
The uppermost part; the top:
最上部；顶端：
例句：
Place the appropriate name at the head of each column.
在每一栏的顶端填入正确的名字

The end considered the most important:
被认为是最重要的一端：
例句：
sat at the head of the table.
坐在首席

Either end of an object, such as a drum, whose two ends are interchangeable.
物体两端的任一端：如鼓等两头可互换的物体的两端
Nautical
【航海】
The forward part of a vessel.
船首：船的前部
The top part or upper edge of a sail.
船帆的上部或顶缘
A toilet, especially on a ship.
洗手间：尤指船上的厕所
A passage or gallery in a coal mine.
通道：煤矿中的通道或水平巷道
Printing
【印刷术】
The top of a book or of a page.
一本书或一页纸的上部
A headline or heading.
题头或标题
A distinct topic or category:
一确定的主题或类别：
例句：
under the head of recent Spanish history.
在西班牙近代史这个主题下

Headway; progress.
前进；发展
Linguistics The word in a construction that has the same grammatical function as the construction as a whole and that determines relationships of concord to other parts of the construction or sentence in which the construction occurs.
【语言学】 中心词：在某结构中和这种结构作为一个整体来看具有相同的语法功能，并决定这种结构其它部分或这种结构所在句子之间和谐一致关系的词
Vulgar Slang Oral sex.
【粗俗用语】 【俚语】 口交
adj.（形容词）
Of, relating to, or intended for the head. Often used in combination:
头的：头的、关于头的或意指头的。常用于复合词中：
例句：
headshaking; headwrap.
摇头的；包住头的

Foremost in rank or importance:
等级最高的，最重要的：等级或重要性居于前列的：
例句：
the head librarian.
图书馆理员组长

Placed at the top or the front:
被置于顶端或前面的：
例句：
the head name on the list.
单子上的第一个名字

Slang Of, relating to, or for drugs or drug users.
【俚语】 毒品或瘾君子的：属于、有关或为了毒品或瘾君子的
v.（动词）
head.ed,head.ing,heads
v.tr.（及物动词）
To be in charge of; lead:
负责；领导：
例句：
The minister headed the committee.
这位部长负责委员会

To be in the first or foremost position of:
排在最先或第一的位置：
例句：
Collins heads the list of job candidates.
柯林斯是这个职务候选人名单上的首先人物

To aim, point, or turn in a certain direction:
瞄准、指向或转入某一方向：
例句：
headed the team of horses up the hill.
催马上山

To remove the head or top of.
除去…的头部或顶端
Sports To hit (a soccer ball) in the air with one`s head.
【体育运动】 用头在空中击（足球）
To provide with a head:
给…加上某物：
例句：
head each column with a number; headed the flagpole with a golden ball.
给每列前面加上数字；给旗杆安上一个金色的圆球

v.intr.（不及物动词）
To proceed or go in a certain direction:
前进：继续朝着或沿着一定方向：
例句：
head for town.
朝城镇方向前进

To form a head, as lettuce or cabbage.
结成球状：如莴苣或卷心菜等形成头状物
To originate, as a stream or river; rise.
如小溪或河流发源；源于

<常用词组>head off
To block the progress or completion of; intercept:
拦截：阻挡…的进程或完成；拦截：
例句：
Try to head him off before he gets home.
在他回到家之前截住他

<习惯用语>head and shoulders above
Far superior to:
远远强于…：
例句：
head and shoulders above her colleagues in analytical capability.
在分析能力上远远强于她的同事

head over heels
Rolling, as in a somersault:
象翻筋斗一样滚动：
例句：
tripped and fell head over heels.
一头绊倒在地

Completely; hopelessly:
完全地；毫无希望地：
例句：
head over heels in love.
深深堕入爱河之中

keep (one`s) head
To remain calm; remain in control of oneself.
保持冷静；保持对自身的克制
lose (one`s) head
To lose one`s poise or self-control.
失去镇定或自制
off (one`s) head 或
out of (one`s) head
Insane; crazy.
精神错乱的；疯狂的
put heads together
To consult and plan together:
一起商量和计划：
例句：
Let`s put our heads together and solve this problem.
让我们一起想办法解决这个问题

来源：
Middle English
中古英语
from Old English hôafod * see kaput-
源自 古英语 hôafod *参见 kaput-