Audi alteram partem (or audiatur et altera pars) is a Latin phrase that literally means "It is heard [audiatur] also the other party", "hear [audi] the other side too", or "hear the alternative party too".audi alteram partem: Definition from the Merriam-Webster Online Dictionary It is most often used to refer to the principle that no person should be judged without a fair hearing in which each party is given the opportunity to respond to the evidence against them.