Interlocutor (noun)
in-ter-lok-yu-ter
a person who takes part in a conversation or dialogue.
Interlocutor was first recorded in 1505–15, and comes from a stem of the Latin word interloquī, meaning “to speak between.” The loqui part, which means “to speak,” also appears in loquacious, eloquent, and circumlocution.
Example sentences
“A lively discussion was taking place, host and interlocutor batting the debate back and fore.”