1. a partnership or joint business venture between two or more people or entities
Usage: often used in legal and business contexts

Examples

• The two entrepreneurs entered into a copartnership to launch their new tech startup.
• Their copartnership proved successful, with both parties contributing equally to the business.
• The copartnership agreement outlined each partner's responsibilities and profit-sharing arrangements.
• She dissolved the copartnership after five years to pursue other opportunities.
• The copartnership between the two law firms created a stronger presence in the market.