1. joined together as partners; united in a partnership

1. past tense and past participle of copartner; to partner with someone or act as a copartner
Usage: rare; more commonly expressed as 'partnered with'

Examples

• The two companies copartnered on the research project.
• They were copartnered in the business venture for five years.
• The copartnered organizations worked together to achieve their goals.
• She copartnered with a local nonprofit to expand their community programs.
• The copartnered teams combined their expertise to solve the problem.