also: じぎょうしゅ
noun
business owner; entrepreneur
General term for a person who owns or runs a business.
彼女は小さなカフェの事業主です。
She is the owner of a small café.
事業主として、リスクを取る覚悟が必要だ。
As an entrepreneur, you need to be prepared to take risks.
noun
Legal or formal term for an employer, especially in labor law contexts.
労働基準法では、事業主は従業員に休憩を与えなければならない。
Under the Labor Standards Act, the employer must provide breaks to employees.
Compound of 事業 (business, enterprise) and 主 (master, owner). The reading じぎょうぬし uses the kun'yomi for 主, while じぎょうしゅ uses the on'yomi.