Liaison

n.kind, capableprofessional

What it means

A person or arrangement that keeps communication working between separate groups.

Reach for it when naming an accountable bridge when coordination depends on reliable two-way contact

The hospital appointed a family liaison to answer questions during the transfer.

playful
go-between
informal wording suits a person carrying messages
not when Go-between can hint at secrecy and feels too casual for public services.
everyday
contact
one named person handles questions and updates
not when A contact can simply receive messages without actively maintaining the relationship.
warm
bridge
a person helps communities understand one another
not when Bridge is metaphorical and obscures the role's formal responsibilities.
warm
facilitator
someone enables productive exchange without controlling it
not when A facilitator may lead one meeting and need not remain the continuing link.
professional
coordinator
someone organizes schedules, tasks, or resources
not when A coordinator may direct one team rather than connect separate constituencies.
professional
representative
someone speaks or acts for one party
not when A representative owes allegiance to one side, unlike a neutral liaison.
formal
intermediary
messages or negotiations pass through a third party
not when Intermediary can imply distance and may not support ongoing cooperation.

community liaison
The community liaison brought residents' questions directly to the project board.
serve as liaison
Jules will serve as liaison between the archive and local families.
liaison officer
A liaison officer coordinated safe access for the visiting crews.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.