Another term used for interpersonal communication is

Another term for interpersonal communication is dyadic communication, since it happens between two people forming a dyad.

The pairing of a single sender and a single receiver is the core of both terms.

Group communication involves several members at once, which is larger than a two-person dyad.

Face-to-face public communication sets one speaker before an audience, unlike a private two-way exchange.

Traditional communication refers to folk and indigenous forms, not to the two-person label.

Dyadic communication names the smallest interpersonal unit, a conversation between two.