/ˈdʌbl ||; ˈdʌbḷ/noun1 [U] twice the (usual) number or amount 两倍的数目或数量: When you work overtime, you get paid double. 加班工作可得双倍工资。
2 [C] a glass of strong alcoholic drink containing twice the usual amount 一杯双份烈酒
3 [C] a person who looks very much like another 外貌酷似另一个人的人: I thought it was you I saw in the supermarket. You must have a double. 我还以为在超级市场看见的是你，一定是有人长得很像你。
4 [C] an actor who replaces another actor in a film to do dangerous or other special things （电影中的）特技替身演员
5 [C] a bedroom for two people in a hotel, etc （旅馆等的）双人房间 ☞Look at single ²(3). 参看single^2(3)。
6 doubles [pl] (in some sports, for example tennis) with two pairs playing （某些体育运动，例如网球）双打: the Men's Doubles final 男子双打决赛 ☞Look at single ²(4). 参看single^2(4)。