"feds" in the noun sense
1. Federal, Fed, federal official
any federal law-enforcement officer
2. Federal Reserve System, Federal Reserve, Fed, FRS
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
"the Fed seeks to control the United States economy by raising and lowering short-term interest rates and the money supply"
Source: WordNet® (An amazing lexical database of English)
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