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English definition of “triad”

triad

noun uk   /ˈtraɪ.æd/ us  

triad noun (CHINESE ORGANIZATION)

[C] a secret Chinese organization involved in illegal activities such as selling drugsGangsters, thugs and criminal organizations

triad noun (THREE THINGS)

[S] literary three related things that form a group: the classic triad of the visual arts: architecture, painting and sculptureGroups of things according to numberGroups of people
(Definition of triad from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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