名詞 double:

1. a base hit on which the batter stops safely at second base
   同義詞：two-base hit, two-bagger, two-baser
2. a stand-in for movie stars to perform dangerous stunts
   同義詞：stunt man, stunt woman
3. someone who closely resembles a famous person (especially an actor)
   同義詞：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
   同義詞：doubling

動(dòng)詞 double:

1. increase twofold
   同義詞：duplicate
2. hit a two-base hit
3. bend over or curl up, usually with laughter or pain
   同義詞：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
   同義詞：duplicate, reduplicate, repeat, replicate

形容詞 double:

1. having more than one decidedly dissimilar aspects or qualities-Frederick Harrison
   同義詞：dual, twofold, two-fold, treble, threefold, three-fold
2. consisting of or involving two parts or components usually in pairs
   同義詞：dual, duple
3. twice as great or many
   同義詞：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
   同義詞：bivalent
6. large enough for two
7. having two meanings with intent to deceive
   同義詞：forked

副詞 double:

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

1. The boss wants you you'd better get upstairs at the double.
   老板叫你－－你最好趕緊上樓去，
2. A couch performs a double service.
   躺椅可以(坐臥)兩用。
3. The egg has a double yolk.
   這只蛋雙黃。
4. Is the material single width or double width?
   這幅料子是單幅的還是雙幅的？
5. He is my double, though we are not related.
   我們兩人雖然沒(méi)有親緣關(guān)系，他卻和我長(zhǎng)得一模一樣。

dou.ble

adj.Abbr. dble.（形容詞）縮寫 dble.
Twice as much in size, strength, number, or amount:
兩倍的，雙倍的：大小、力量或數(shù)量上兩倍的：
例句：
a double dose.
兩倍的劑量

Composed of two like parts:
雙層的：兩個(gè)相同部分組成的雙層的：
例句：
double doors.
雙層門

Composed of two unlike parts; dual:
雙重的：由兩個(gè)不同部分組成的；雙重的：
例句：
a double meaning; a double role for an actor.
雙關(guān)語(yǔ)；演員的雙重角色

Accommodating or designed for two:
雙人的：供兩人用的，雙人的：
例句：
a double bed; a double room.
雙人床；雙人房間

Characterized by duplicity; deceitful:
不誠(chéng)實(shí)的：表里不一的；虛偽的：
例句：
speak with a double tongue.
說(shuō)話口是心非

Botany Having many more than the usual number of petals, usually in a crowded or an overlapping arrangement:
【植物學(xué)】 重瓣的：通常以擁擠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.（名詞）縮寫 dble.
Something increased twofold.
倍增：成倍增加的東西
One that closely resembles another; a duplicate.
相似者：和另一個(gè)酷似的人或物；翻版

An actor`s understudy.
候補(bǔ)演員
An actor who takes the place of another actor in scenes requiring special skills or preparations:
替身：特技替身演員：
例句：
a stunt double; a body double.
特技替身演員；身材類似的替身

An apparition; a wraith.
幽靈；生魂

A sharp turn in a direction of movement; a reversal.
急轉(zhuǎn)：一個(gè)方向或動(dòng)作的急轉(zhuǎn)彎；折回
A sharp, often devious change in position or argument; a shift.
迅速改變立場(chǎng)：論點(diǎn)或立場(chǎng)的急劇的、不光明正大的轉(zhuǎn)變；轉(zhuǎn)向
doubles Sports A form of a game, such as tennis or handball, having two players on each side.
doubles 【體育運(yùn)動(dòng)】 雙打：游戲每邊都有兩名選手的雙打形式，如網(wǎng)球、乒乓球
Baseball See two-base hit
【棒球】 參見 two-base hit
Games
【游戲】
A bid in bridge indicating strength to one`s partner; a request for a bid.
叫雙倍：橋牌中向搭檔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.
加倍的倍數(shù)：在對(duì)方叫牌的基礎(chǔ)上加倍，這樣當(dāng)完不成定約時(shí)則增加懲罰
A hand justifying such a bid.
能叫加倍的好牌
v.（動(dòng)詞）
dou.bled,dou.bling,dou.bles
v.tr.（及物動(dòng)詞）
To make twice as great.
使加倍
To be twice as much as:
是…的兩倍：
例句：
doubled the score of his opponent.
是他對(duì)手得分的兩倍

To fold in two.
把…對(duì)折
To clench (one`s fist).
握緊（拳頭）
To duplicate; repeat.
復(fù)制；重復(fù)
To turn (an enemy spy) into a double agent.
反間諜：使（敵方特務(wù)）成為雙重間諜
Baseball
【棒球】
To cause the scoring of (a run) by hitting a two-base hit.
以二壘打得分
To advance or score (a runner) by hitting a two-base hit.
擊出二壘安打：以二壘安打使跑壘者上壘或得分
Baseball To put out (a runner) as the second part of a double play.
【棒球】 雙殺時(shí)刺殺第二位跑者
Games To challenge (an opponent`s bid) with a double in bridge.
【游戲】 叫加倍：在橋牌中對(duì)對(duì)方叫牌的分?jǐn)?shù)加倍
Music To duplicate (another part or voice) an octave higher or lower or in unison.
【音樂(lè)】 音高重復(fù)：在高或低八度上或同一音高上重復(fù)
Nautical To sail around:
【航?！?/i> 環(huán)繞：繞著…航行：
例句：
double a cape.
繞著岬角航行

v.intr.（不及物動(dòng)詞）
To be increased twofold:
增為兩倍：
例句：
The debt soon doubled.
債務(wù)不久就增了一倍

To turn sharply or all the way around; reverse one`s course:
急轉(zhuǎn)：急轉(zhuǎn)或繞回；返回：
例句：
had to double back to touch the missed base.
必須緊急轉(zhuǎn)身回頭觸壘

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.
兼作餡餅盤的油炸鍋；兼奏鋼琴的指揮

To replace an actor in the actor`s absence or in a certain scene.
替代演出：當(dāng)演員不在時(shí)或在某個(gè)場(chǎng)面中由替代演員演出
Baseball To hit a two-base hit.
【棒球】 擊出二壘安打
Games To announce a double in bridge.
【游戲】 橋牌中叫加倍
adv.（副詞）
To twice the amount or extent; doubly:
兩倍地：兩倍的數(shù)量或程度；兩倍地：
例句：
paid double for the customized car.
付雙倍的價(jià)錢購(gòu)買訂制的車輛

Two together; in pairs:
雙雙地；成對(duì)地：
例句：
sleeping double.
合睡一張床

In two:
對(duì)半地：
例句：
bent double.
對(duì)折

<常用詞組>double up
To bend suddenly, as in pain or laughter.
彎腰：因疼痛或大笑等彎下身子
To share accommodations meant for one person.
同宿一室
<習(xí)慣用語(yǔ)>on the double 或
at the double
Immediately.
立即
In double time.
雙倍
來(lái)源：
Middle English
中古英語(yǔ)
from Old French
源自 古法語(yǔ)
from Latin duplus * see dwo-
源自 拉丁語(yǔ) duplus *參見 dwo-

【引伸】
dou.bleness
n.（名詞）