/ fed; NAmE / noun ( US , informal )
1.
[ C ] an officer of the FBI or another federal organization
2.
the Fed [ sing. ] = the Federal Reserve
••
WORD ORIGIN
early 20th cent.: abbreviation of federal . The abbreviation fed had previously been used in the late 18th cent. to denote a member of the Federalist Party, who advocated a union of American colonies after the War of Independence.