Initial stage of a competitive, academic debate
In debate, which is a form of argument competition, a case, sometimes known as plan, is a textual advocacy presented, in form of speech, by the Pro team as a normative or "should" statement; it is generally presented in the First Pro Constructive (1AC). A case will often include either the resolution or a rephrasing of it.
The case is the advocacy established by the Pro in the First affirmative constructive speech, often constructed around the support of a policy recommendation known as the affirmative plan. While the 1AC defines the parameters for the bulk of an affirmative's argument, the term "case" can be used to cover the entirety of the affirmative argument more broadly, referring, for instance, to additional advantages, counter-arguments, or rebuttal evidence that might be introduced in later speeches (if at all).