The manager of a shop; the person in charge of running the store and supervising staff.
店長に欠勤の連絡を入れておいた。
I notified the store manager about my absence.
店長の判断でセール期間が延長された。
The sale period was extended by the manager's decision.
新しい店長は挨拶がしっかりしている人だ。
The new store manager is someone who greets customers properly.