Pronunciation: (pri-vent'), [key]
1. to keep from occurring; avert; hinder: He intervened to prevent bloodshed.
2. to hinder or stop from doing something: There is nothing to prevent us from going.
3. Archaic.to act ahead of; forestall.
4. Archaic.to precede.
5. Archaic.to anticipate.
to interpose a hindrance: He will come if nothing prevents.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.