An association, union, or guild formed by people with common interests or occupations (e.g., cooperatives, labor unions).
この地域には小さな生産者の組合がいくつかある。
There are several small producers' cooperatives in this area.
組合は労働条件の改善を求めて会社と交渉を始めた。
The union started negotiations with the company seeking improved working conditions.
組み合いの予定表が掲示板に貼られている。
The schedule of match-ups (pairings) is posted on the bulletin board.