Pronunciation: (di-ploi'),[key] —v.t. 1. Mil.to spread out (troops) so as to form an extended front or line.
2. to arrange in a position of readiness, or to move strategically or appropriately: to deploy a battery of new missiles.
—v.i. 1. to spread out strategically or in an extended front or line.
2. to come into a position ready for use: the plane can't land unless the landing gear deploys.