柯林斯詞典power of attorney 1. N-UNCOUNT Power of attorney is a legal document that allows you to appoint someone such as a lawyer to act on your behalf in specified matters. 委托書; 授權書 返回 power of attorney劍橋詞典the legal right to act for someone else in their financial or business matters , or the document that gives you this right 代理權；委托書；授權書 返回 power of attorney