Which word refers to an intermediary who helps facilitate communication?

The term "liaison" specifically refers to an intermediary who assists in facilitating communication between different parties or groups. This role is essential in various contexts, such as within organizations, between departments, or even between different entities, ensuring that messages are conveyed clearly and effectively. A liaison acts as a bridge, fostering collaboration and understanding, which can help prevent misunderstandings and ensure that all relevant information reaches the appropriate individuals.

In contrast, while a volunteer may assist in various tasks, their role isn't specifically focused on communication facilitation. A manager typically oversees operations and may communicate, but their responsibilities extend far beyond serving as an intermediary. An executive is often involved in high-level decision-making and strategic planning, which is also not synonymous with the role of facilitating communication between parties. Therefore, "liaison" is the most accurate term for an intermediary focused on communication.