The act of merging or joining two or more entities into one; merger, amalgamation, or annexation (e.g., corporate merger or territorial annexation).
二つの会社が来月併合することが発表された。
It was announced that the two companies will merge next month.
市町村の再編で小さな自治体が併合された。
In municipal reorganization, small communities were merged.
歴史的には、隣接する領土の併合が繰り返された。
Historically, the annexation of neighboring territories occurred repeatedly.