a person who owns, manages or works at a store/shop;
a petty officer in charge of supplies — food, drinks, clothes and other item — in the Army or the Navy,
Young Jason took up a job as a storekeeper in one of the local branch of a chain of stores and did his job so well that the boss promoted his as the Chief storekeeper which necessitated him to visit other branches to supervise the work of the branch storekeepers.
As supermarkets, malls and mega malls are encroaching the town and village markets, most local storekeepers who have been giving jobs to the local youth are forced to close their stores and look for jobs for them selves.
Storekeepers on warships must be very alert and very good at his job of storing all the things needed on their ships which may not call a port in a month or, at times, in three months because if anything is missing or needed, there is no way the storekeepers can place an order and get the goods supplied as they do onshore!