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A triad, meaning a "group of three", may refer to:




Television and film[edit]

Video games[edit]


  • Welsh Triads, collections of medieval Welsh legend and history
  • Triads of Ireland, triplet proverbs and aphorisms
  • The three parts of the Pindaric ode: the strophe, the antistrophe, and the epode

Philosophy and religion[edit]

Politics and economics[edit]

  • CIA triad (confidentiality, integrity and availability), core principles of information security
  • Economic "triad" of Japan and Southeast Asia, North America, and Western Europe in the theory of triadization

Psychology and sociology[edit]

Science and technology[edit]

Biology and medicine[edit]


  • Nuclear triad, the strategy of a nation's nuclear delivery being in three ways: land, sea, and air systems
  • Triad (superhero), alias of fictional DC Comics super hero Triplicate Girl
  • Piedmont Triad, region of North Carolina, USA

See also[edit]