1. a group of three related people or things
2. a chord of three musical notes
Usage: music
3. a secret Chinese criminal organization

Examples

• The primary colors form a triad of red, blue, and yellow.
• The novel explores a triad of themes: love, loss, and redemption.
• She played a simple triad on the piano.
• The major triad consists of the root, third, and fifth notes.
• Police investigated connections to organized crime triads.
• The three friends formed an inseparable triad throughout college.
• Ancient philosophy often discussed triads of concepts.