interlocutor
UK: /ˌɪntəˈlɒkjʊtə/ | US: /ˌɪntərˈlɑːkjətər/
n. a person who takes part in a conversation or dialogue
n. (formal) a mediator or intermediary in a discussion
Derived from Latin interlocut- (past participle stem of interloqui), combining inter- (between) and loqui (to speak). The suffix -or denotes an agent noun (one who performs the action). The word evolved through French interlocuteur before entering English in the 16th century, retaining its core meaning of "one who speaks between others" in dialogues or negotiations.
The lawyer acted as an interlocutor between the disputing parties.
In the debate, each interlocutor presented contrasting viewpoints.
The talk show host skillfully moderated the interlocutors' discussion.
Ancient Greek dialogues often feature Socrates as the primary interlocutor.
As an interlocutor, her role was to facilitate understanding between the two cultures.