Noun dia has 1 sense
  1. Defense Intelligence Agency, DIA - an intelligence agency of the United States in the Department of Defense; is responsible for providing intelligence in support of military planning and operations and weappons acquisition
    --1 is a kind of navigator; military intelligence; United States intelligence agency; navigator; military intelligence; 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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