Presidents meaning : An act in the past which may be used as an example to help decide the outcome of similar instances in the future. A decided case which is cited or used as an example to justify a judgment in a subsequent case. An established habit or custom. (with definite article) The aforementioned (thing). The previous version. A rough draught of a writing which precedes a finished copy. The head of state of a republic. In presidential republics, the head of government and head of state. Primary leader of a corporation. Not to be confused with CEO, which is a related but separate position that is sometimes held by a different person. A person presiding over a meeting, chair, presiding officer, presider.