Definition from Wiktionary, the free dictionary
- An early 20th century avant-garde art movement focused on speed, the mechanical, and the modern, which took a deeply antagonistic attitude to traditional artistic conventions; (originated by F.T. Marinetti, among others).
- The study and prediction of possible futures.
- (Judaism) The Jewish expectation of the messiah in the future rather than recognizing him in the presence of Christ.
- (Christianity) Eschatological interpretations associating some Biblical prophecies with future events yet to be fulfilled, including the Second Coming.
Related terms 
study of possible futures — see futurology