Noun nsa has 1 sense
  1. National Security Agency, NSA - the United States cryptologic organization that coordinates and directs highly specialized activities to protect United States information systems and to produce foreign intelligence information
    --1 is a kind of United States intelligence agency
    --1 is a part of
     Department of Defense, Defense Department, United States Department of Defense, Defense, DoD
    --1 is a member of
     Intelligence Community, National Intelligence Community, United States Intelligence Community, IC
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