joint enterprise; joint venture
A business undertaking carried out by two or more parties together. Often used in formal or legal contexts.
See also: 共同企業
The two companies launched a joint venture to develop a new product.
Three companies are participating in this joint enterprise.
Similar in meaning, but 共同企業 can also refer to a jointly owned company as an entity, while 共同事業 emphasizes the project or undertaking itself.
Compound of 共同 (joint, cooperative) and 事業 (enterprise, undertaking).