単たん組そMeanings1nounlocal labor unionabbreviationAbbreviation of 単位組合. Used in labor union contexts to refer to a union at a single workplace or establishment.See also: 単位組合単たん組その役やく員いんが集あつまって会かい議ぎを開ひらいた。The officers of the local labor union gathered and held a meeting.