Facilitation and facilitate are not words that were much used thirty years ago. Even recent dictionaries treat them cursorily.
Buzz groups are a technique most commonly used in workshops. Participants break into pairs or small groups and have a short, intense discussion on a defined question.
Participatory methods (PMs) include a range of activities with a common thread: enabling ordinary people to play an active and influential part in decisions which affect their lives. This means that people are not just listened to, but also heard; and that their voices shape outcomes.
Researchers, community members, activists and donors all use PMs. Because respect for local knowledge and experience is paramount, the result is interventions that reflect local realities, often leading to better supported and longer lasting social change.