What is the term for a group that consists of only two individuals?

The term that specifically refers to a group composed of exactly two individuals is "dyad." In the context of group dynamics, a dyad is the simplest form of social interaction, as the relationship between the two members is direct and immediate. Dyads can facilitate intimate conversations and personal connections because each member must engage with the other without the involvement of a third party.

In contrast, a "team" typically involves a larger group working together towards a common goal, which does not align with the definition of just two individuals. A "triad" consists of three members, expanding the complexity of interactions and dynamics present. "Collective" is a broader term that refers to a group of individuals, usually larger than just two, who collaborate or share a common purpose. Thus, "dyad" is the only option accurately identifying a group of two.