deployv. t. & i.[F. dployer; pref. d = ds (L. dis) + ployer, equiv. to plier to fold, fr. L. plicare. See Ply, and cf. Display.] (Mil.) To open out; to unfold; to spread out (a body of troops) in such a way that they shall display a wider front and less depth; -- the reverse of ploy; as, to deploy a column of troops into line of battle.()v. t. To place (people or other resources) into a position so as to be ready to for action or use.()n. (Mil.) The act of deploying; a spreading out of a body of men in order to extend their front.(Wilhelm.)Deployments . . . which cause the soldier to turn his back to the enemy are not suited to war. (H. L. Scott.)