noun
Refers to a person or entity that runs a business; often used in legal, commercial, or regulatory contexts.
この許可は業主本人が申請する必要があります。
This permit must be applied for by the business operator themselves.
業主は従業員の安全を確保する責任がある。
The business operator is responsible for ensuring the safety of employees.
Compound of 業 (business, industry) and 主 (master, owner). The exact historical derivation is uncertain, but the term is used in modern Japanese to denote a business proprietor.