Manifesto/ˌmænɪˈfestəʊ/ Definition 1 of 3Pro Tip 1/3Policy Outline A manifesto often details specific proposals and plans. Their manifesto promised healthcare reform. Pro Tip 2/3Public Persuasion Manifestos try to convince the public to support a cause. The manifesto urged people to protect the environment. Pro Tip 3/3Vision Presentation Manifestos express a future the authors wish to create. Their manifesto envisioned a world without poverty.