noun
local labor union; local labour union
Refers to a union organized at a single workplace or company, as opposed to an industrial or national union.
彼は職場の単位組合の委員長を務めている。
He serves as the chairperson of the local labor union at his workplace.
労働組合 is the general term for a labor union, while 単位組合 specifically refers to a union at the local or enterprise level.
Compound of 単位 (unit) and 組合 (union, association), literally 'unit union'.