double

名词 double:

1. a base hit on which the batter stops safely at second base
   同义词：two-base hit, two-bagger, two-baser
2. a stand-in for movie stars to perform dangerous stunts
   同义词：stunt man, stunt woman
3. someone who closely resembles a famous person (especially an actor)
   同义词：image, look-alike
4. a quantity that is twice as great as another
5. raising the stakes in a card game by a factor of 2
   同义词：doubling

动词 double:

1. increase twofold
   同义词：duplicate
2. hit a two-base hit
3. bend over or curl up, usually with laughter or pain
   同义词：double over, double up
4. do double duty; serve two purposes or have two functions
5. bridge: make a demand for (a card or suit)
6. make or do or perform again
   同义词：duplicate, reduplicate, repeat, replicate

形容词 double:

1. having more than one decidedly dissimilar aspects or qualities-Frederick Harrison
   同义词：dual, twofold, two-fold, treble, threefold, three-fold
2. consisting of or involving two parts or components usually in pairs
   同义词：dual, duple
3. twice as great or many
   同义词：doubled, twofold, two-fold
4. used of flowers having more than the usual number of petals in crowded or overlapping arrangements
5. used of homologous chromosomes associated in pairs in synapsis
   同义词：bivalent
6. large enough for two
7. having two meanings with intent to deceive
   同义词：forked

副词 double:

1. downward and forward
2. two together
3. to double the degree
   同义词：doubly, twice

1. The boss wants you you'd better get upstairs at the double.
   老板叫你－－你最好赶紧上楼去，
2. A couch performs a double service.
   躺椅可以(坐卧)两用。
3. The egg has a double yolk.
   这只蛋双黄。
4. Is the material single width or double width?
   这幅料子是单幅的还是双幅的？
5. He is my double, though we are not related.
   我们两人虽然没有亲缘关系，他却和我长得一模一样。

dou.ble

adj.Abbr. dble.（形容词）缩写 dble.
Twice as much in size, strength, number, or amount:
两倍的，双倍的：大小、力量或数量上两倍的：
例句：
a double dose.
两倍的剂量

Composed of two like parts:
双层的：两个相同部分组成的双层的：
例句：
double doors.
双层门

Composed of two unlike parts; dual:
双重的：由两个不同部分组成的；双重的：
例句：
a double meaning; a double role for an actor.
双关语；演员的双重角色

Accommodating or designed for two:
双人的：供两人用的，双人的：
例句：
a double bed; a double room.
双人床；双人房间

Characterized by duplicity; deceitful:
不诚实的：表里不一的；虚伪的：
例句：
speak with a double tongue.
说话口是心非

Botany Having many more than the usual number of petals, usually in a crowded or an overlapping arrangement:
【植物学】 重瓣的：通常以拥挤的或翻卷的形式排列而比正常的花瓣多得多的：
例句：
a double chrysanthemum.
重瓣菊花

n.Abbr. dble.（名词）缩写 dble.
Something increased twofold.
倍增：成倍增加的东西
One that closely resembles another; a duplicate.
相似者：和另一个酷似的人或物；翻版

An actor`s understudy.
候补演员
An actor who takes the place of another actor in scenes requiring special skills or preparations:
替身：特技替身演员：
例句：
a stunt double; a body double.
特技替身演员；身材类似的替身

An apparition; a wraith.
幽灵；生魂

A sharp turn in a direction of movement; a reversal.
急转：一个方向或动作的急转弯；折回
A sharp, often devious change in position or argument; a shift.
迅速改变立场：论点或立场的急剧的、不光明正大的转变；转向
doubles Sports A form of a game, such as tennis or handball, having two players on each side.
doubles 【体育运动】 双打：游戏每边都有两名选手的双打形式，如网球、乒乓球
Baseball See two-base hit
【棒球】 参见 two-base hit
Games
【游戏】
A bid in bridge indicating strength to one`s partner; a request for a bid.
叫双倍：桥牌中向搭档表明自己力量的叫牌；叫牌
A bid doubling one`s opponent`s bid in bridge, thus increasing the penalty for failure to fulfill the contract.
加倍的倍数：在对方叫牌的基础上加倍，这样当完不成定约时则增加惩罚
A hand justifying such a bid.
能叫加倍的好牌
v.（动词）
dou.bled,dou.bling,dou.bles
v.tr.（及物动词）
To make twice as great.
使加倍
To be twice as much as:
是…的两倍：
例句：
doubled the score of his opponent.
是他对手得分的两倍

To fold in two.
把…对折
To clench (one`s fist).
握紧（拳头）
To duplicate; repeat.
复制；重复
To turn (an enemy spy) into a double agent.
反间谍：使（敌方特务）成为双重间谍
Baseball
【棒球】
To cause the scoring of (a run) by hitting a two-base hit.
以二垒打得分
To advance or score (a runner) by hitting a two-base hit.
击出二垒安打：以二垒安打使跑垒者上垒或得分
Baseball To put out (a runner) as the second part of a double play.
【棒球】 双杀时刺杀第二位跑者
Games To challenge (an opponent`s bid) with a double in bridge.
【游戏】 叫加倍：在桥牌中对对方叫牌的分数加倍
Music To duplicate (another part or voice) an octave higher or lower or in unison.
【音乐】 音高重复：在高或低八度上或同一音高上重复
Nautical To sail around:
【航海】 环绕：绕着…航行：
例句：
double a cape.
绕着岬角航行

v.intr.（不及物动词）
To be increased twofold:
增为两倍：
例句：
The debt soon doubled.
债务不久就增了一倍

To turn sharply or all the way around; reverse one`s course:
急转：急转或绕回；返回：
例句：
had to double back to touch the missed base.
必须紧急转身回头触垒

To serve in an additional capacity:
兼任：
例句：
a frying pan that doubles as a pie tin; a conductor who doubles as a pianist.
兼作馅饼盘的油炸锅；兼奏钢琴的指挥

To replace an actor in the actor`s absence or in a certain scene.
替代演出：当演员不在时或在某个场面中由替代演员演出
Baseball To hit a two-base hit.
【棒球】 击出二垒安打
Games To announce a double in bridge.
【游戏】 桥牌中叫加倍
adv.（副词）
To twice the amount or extent; doubly:
两倍地：两倍的数量或程度；两倍地：
例句：
paid double for the customized car.
付双倍的价钱购买订制的车辆

Two together; in pairs:
双双地；成对地：
例句：
sleeping double.
合睡一张床

In two:
对半地：
例句：
bent double.
对折

<常用词组>double up
To bend suddenly, as in pain or laughter.
弯腰：因疼痛或大笑等弯下身子
To share accommodations meant for one person.
同宿一室
<习惯用语>on the double 或
at the double
Immediately.
立即
In double time.
双倍
来源：
Middle English
中古英语
from Old French
源自 古法语
from Latin duplus * see dwo-
源自 拉丁语 duplus *参见 dwo-

【引伸】
dou.bleness
n.（名词）