1 a piece of material like a small bag that is sewn inside or on a piece of clothing and is used for carrying things in 衣袋；口袋: He always walks with his hands in his trouser pockets. 他走路时老是把两只手插在裤袋里。a pocket dictionary/calculator(= one small enough to fit in your pocket) 袖珍字典／计算器

2 a small bag or container that is fixed to the inside of a car door, suitcase, etc and used for putting things in （汽车门、手提箱等内部的）袋子: There are safety instructions in the pocket of the seat in front of you. 你前面座位的袋子里有安全守则。

3 used to talk about the amount of money that you have to spend （不得不花的）金额: They sell cars to suit every pocket. 他们出售各种财力的人都买得起的汽车。The school couldn't afford a CD player, so the teacher bought one out of his own pocket. 学校买不起激光唱机，所以这位老师自掏腰包买了一部。

4 a small area or group that is different from its surroundings （与周围不同的）小范围，群体，一小群，一小团: pockets of warm water 小块暖水 ☞Look at air pocket. 参看air pocket。