It’s a cause of confusion. The term “just cause” can have different meaning in different context, namely with respect to unionized and nonunionized employees, according to Michael Wilhelm in the Minnesota Employer Blog.

To straighten out the terminology, Wilhelm focuses on “just cause” for unionized employees. It depends on a variety of factors, he says, including language in collective bargaining agreements, arbitration decisions made on similar facts, an employer’s arbitration history, and the individual facts and circumstances of the case.