1 an extra item that is added to sth and is useful or attractive but not of great importance 附件;配件:
The car has accessories such as an electronic alarm.这辆车子装有电子警钟之类的附加设备。
2 [usu.pl] a thing that you wear or carry that matches your clothes, for example a piece of jewellery, a bag, etc 服装的配件或装饰物(例如珠宝、提包等)
3an accessory (to sth) (in law) a person who helps sb to do sth illegal (法律)从犯;帮凶:
He was charged with being an accessory to murder.他被指控为谋杀案的从犯。