/'dʌbl; `dʌbl/
adj [usu attrib 通常作定语]
1 twice as much or as many (as usual) 加倍的; 两倍的
*a double helping 一客双份的食物
* two double whiskies 两杯双份的威士忌酒
* the new bleach with double strength for killing germs 杀菌力特强的新型漂白剂.
2 having or made of two things or parts that are equal or similar 由两个相等或相似部分组成的; 双的
*Look, double yellow lines you mustn't park here. 喂, 这是双黄线--不能在这儿停车.
* `I didn't do nothing' is a double negative, ie two negatives where only one is needed. I didn't do nothing是双重的否定（只需一个否定词即可）.
* a double-page advertisement 一则占左右两页的广告
* `Otter' is spelt with a double t. otter一字中有两个t.
3 made for two people or things 供两人或两物用的; 双人的
*a double room, garage, etc 双人房间、供停放两辆车的车房
* a double wedding, ie of two couples 两对新婚夫妇的婚礼.
4 combining two things or qualities 两种事物结合在一起的
*a double meaning, purpose, aim, etc 双重意义、目的、目标等
* the double advantage of being easy and cheap 既方便又便宜的双重优点
* She leads a double life, ie Her life has two different (perhaps sharply contrasting) aspects, eg being a police officer and a drug dealer. 她过着双重生活（如又是警察又是毒品贩子）.
5 (of flowers) having more than the usual number of petals （指花）重瓣的.
6 (idm 习语) in double `harness with a partner, or with a husband or wife 两人一起; 夫妻一起
*The brothers work in double harness. 哥儿俩一起工作.

/'dʌbl; `dʌbl/
det twice as much or as many (as usual, than sb/sth, etc) 两倍; 双倍
*His income is double hers. 他的收入是她的两倍.
* He earns double what she does. 他挣的比她挣的多一倍.
* We need double the amount we have. 我们需要比现有的多一倍.

/'dʌbl; `dʌbl/
adv in twos or in two parts 成双; 成对; 成两部分
*When I saw her and her twin sister I thought I was seeing double. 我看见她们挛生姐妹时还以为我把一个人看成俩了.
* sleep double, ie two in a bed (for warmth, convenience, etc) 两人合睡一床（为取暖、方便等）
* fold a blanket double 把毯子对摺起来.

/'dʌbl; `dʌbl/
n
1 [U] twice the (usual) number or amount 两倍; 加倍
*He's paid double for the same job. 他做同样的工作, 而报酬比别人多一倍.
2 [C]
(a) person or thing that looks very like another 酷似的人或物
*She's the double of her mother at the same age. 她和她母亲年轻时十分相似.
(b) (in a film) actor who replaces a star in the dangerous scenes （电影中的）特技替身演员.
3 [C] glass of spirits containing twice the usual amount 一杯双份的烈酒
*Two Scotches, please and make those doubles, will you? 请来两杯苏格兰威士忌--都要双份的, 好吗?
4 [C] bet on two horses in different races where any winnings from the first are staked again on the second 复式押注（下注于不同场次的两匹马, 第一场若赢即转押于第二场）.
5 doubles [pl] game (esp of tennis) in which one pair plays another 双打（尤指网球）
*mixed doubles, ie where each pair consists of a man and a woman 混合双打.
6 the double [sing] (sport 体) two prizes won in similar competitions （在同类比赛中）两次获奖
*She's going for the double this year, the Olympics and the World Championship. 今年她要争取奥林匹克赛和世界杯冠军赛的双料冠军.
7 [C] (in bridge) act of doubling （桥牌戏中）叫加倍.
8 [C] (in the game of darts) hit on the outer ring of the board, scoring double （投镖戏中）投中外环, 得分加倍.
9 (idm 习语) at the `double (US on the `double) (infml 口) quickly; hurrying 很快地; 赶紧地
*The boss wants you you'd better get upstairs at the double. 老板叫你--你最好赶紧上楼去. ,double or `quits paying twice what one owes or nothing at all, the decision being made by chance (eg throwing dice) 要么加倍赔钱, 要么欠款一笔勾销（如以掷色子决定）.