association; club; friends of ...
Suffix attached to a name or group to form the name of an association or club, often used in organization names like 〇〇友会.
Next month, there is a gathering of the local music friends' association.
Instead of the university alumni association, he started a departmental friends' club.
mountaineering club
Compound of 友 (friend) and 会 (meeting, association). The exact historical derivation is uncertain, but it is used as a suffix in modern Japanese to form names of clubs or associations.