Dyad/ˈdaɪæd/ Definition 1 of 4Pro Tip 1/3Two as One Think of 'dyad' as two elements closely linked, almost as a single unit. Their partnership formed a strong dyad, successfully leading the project. Pro Tip 2/3Expressing Harmony 'Dyad' can imply a complementary or harmonious relationship between the two. The artist paired blue and green in a dyad that represented sea and land. Pro Tip 3/3Avoid Redundancy Use 'dyad' to refer to two people or things without specifying them again. Throughout history, many famous dyads have changed the world.