1 a person whose job is to connect telephone calls, for the public or in a particular building 话务员；接线员: Dial 100 for the operator. 拨100找接线员。a switchboard operator 电话总机接线员

2 a person whose job is to work a particular machine or piece of equipment （机器、设备等的）操作员: a computer operator 计算机操作员

3 a person or company that does certain types of business （生意）经营者，公司: a tour operator 旅行社