To facilitate is to non-coercively make specific action(s) easier, more effective or more efficient.
In non-coercive activities, including meetings and events, facilitator is often an assigned or unassigned personal role. A facilitator may organize and lead an activity, but has no authority to coercively instruct other participants.
coordinator
Facilitation is a crucial skill in consent-based and consent-oriented decision process. Such facilitation may be identified as a role which is unofficial or is assigned to one or more specific agents.