n.1. a. The act of manifesting.
b. The state of being manifested.
2. An indication of the existence, reality, or presence of something: A high fever is an early manifestation of the disease.
3. a. One of the forms in which someone or something, such as a person, a divine being, or an idea, is revealed.
b. The materialized form of a spirit.
4. A public demonstration, usually of a political nature.