someone whose job is to make sure that players in a game obey the rules 裁判员
2
BRITISH someone who gives information about your abilities and work experience when you are applying for a new job . AMERICAN reference （寻找工作时的）证明人，介绍人
Applicants should also send the names and addresses of two referees. 申请者还需提交两名证明人的姓名和地址。