A legitimate reason, as opposed to an illegal or discriminatory reason.

A necessary condition under the Just War Theory to lead a nation into war. Commonly violated by analogy in the war on prenatal children who are frequently destroyed for less than compelling reasons.

A reason an employer must give for any disciplinary action it takes against an employee. An employer must show just cause only if a contract requires it. Most contracts have just cause requirements which place the burden of proof for just cause on the employer.

Just Cause A.K.A. Bare sagen is a common standard in labor arbitration that is used in labor union contracts as a form of job security. Typically, an employer must prove just cause before an arbitrator to sustain an employee's termination, suspension, or other discipline.