1. see also: fed up

2. (美国安全局、联邦调查局、酒精、烟草与枪支管理局等)联邦机构工作人员
The feds are federal agents, for example of the American security agency, the FBI, or of the Bureau of Alcohol, Tobacco, and Firearms.

1. 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

e.g. the Fed seeks to control the United States economy by raising and lowering short-term interest rates and the money supply

Synonym: Federal Reserve SystemFederal ReserveFRS

2. any federal law-enforcement officer

Synonym: Federalfederal official