He is one of the interlocutors in Cicero's De oratore.
They are written in the form of dialogues, and in the two last the interlocutors are King Charles and Alcuin.
UMT and CDT are Morocco's two largest trade unions and the government's main interlocutors on labor issues.
The Dialogues introduce three interlocutors, Demea, Cleanthes and Philo, who represent three distinct orders of theological opinion.
In virtue of the common-stock of opinion among the interlocutors and their potentially controlling audience, this process was more valuable than appears on the face of things.