What is the term for a collective bargaining agreement between an employer and a union?

The term that most accurately describes a collective bargaining agreement between an employer and a union is "labor contract." A labor contract specifically encompasses the negotiations and agreements made between the union, which represents the employees, and the employer regarding wages, working conditions, benefits, and other employment terms.

While terms like "collective agreement" and "union contract" may seem similar and are often used interchangeably in casual conversation, "labor contract" is the more formal and recognized term within labor law. It is the definitive document that outlines the mutual obligations and responsibilities of both parties in the context of labor relations.

The term "employment contract" typically refers to an agreement between an individual employee and an employer, not a collective agreement negotiated by a union on behalf of a group of employees. Therefore, while it is related to employment law, it does not capture the collective nature of the negotiations in the same way that "labor contract" does.