❶ 结合，联合，合并〔He succeeded by a combination of hard work and luck．他靠辛勤工作和好运而取得了成功。
〕 ❷ 结合体，联合体〔This green paint is a combination of blue and yellow．绿颜色是蓝色和黄色的结合体。〕 ❸ 结合在一起的若干人或物，团体❹ 字码(或号码)锁(又叫combination lock)〔Most safes have a combination lock大多数的保险柜都有一个号码锁。〕