triad
/ˈtraɪæd/
noun
- A group or set of three closely related people or things.
- The triad of colors—red, yellow, and blue—are the primary colors.
- In music, a triad is a chord made up of three notes.
- The three friends formed a triad that worked together on every school project.
- A secret criminal organization, especially one based in China.
- He wrote a book about the history of triads in Southeast Asia.
- Police have been investigating the triad's connections to smuggling rings.
- The movie was about a triad involved in illegal activities across the city.