n. any federal law-enforcement officer
n. the central bank of the United States; incorporates 12 Federal Reserve branch banks and all national banks and state-chartered commercial banks and some trust companies
n. (F-)<美, 非正>（美国）联邦政府执法官员, （尤指）联邦调查局调查员( fed的复数形式 ); feed的过去式和过去分词