noun
storekeeper; shopkeeper; proprietor of a shop
Refers to the owner or operator of a retail store. Neutral term used in business and everyday contexts.
あの商店主はとても親切だ。
That shopkeeper is very kind.
商店主たちが集まって地域のイベントを計画した。
The storekeepers gathered to plan a local event.
経営者 is a broader term for 'manager' or 'business owner', not limited to retail shops.
Compound of 商店 (shōten, 'shop') + 主 (shu, 'master' or 'owner').