series; sequence; system; succession
keiretsu (group); conglomeration of businesses linked by cross-shareholdings
affiliated; subsidiary
同じ系列のホテルに泊まった。
I stayed at a hotel in the same chain.
事件を時系列で整理した。
I organized the events in chronological order.
大手企業の系列に属する会社が多い。
Many companies belong to a major corporation's group.