Definitions of FSB
  1. noun
    a federally chartered savings bank
    synonyms: federal savings bank
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    type of:
    savings bank
    a thrift institution in the northeastern United States; since deregulation in the 1980s they offer services competitive with many commercial banks
  2. noun
    the internal counterintelligence agency of the Russian Federation and successor to the Soviet KGB; formerly led by Vladimir Putin
    synonyms: Federal Security Bureau, Federal Security Service
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    type of:
    Russian agency
    an administrative agency of the Russian government
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