De-ploy'1, v. t.
v. t. [imp. & p. p. DEPLOYED; p. pr. & vb. n. DEPLOYING.] [Fr. déployer, from dé, for des, equiv. to Lat. dis, and ployer, equiv. to plier, to fold, from Lat. plicare, to fold; Pr. desplegar, desplegar, despleiar; Sp. desplegar; Pg. despregar; It. dispiegare, spiegare. See PLICATION.] (Mil.) To open; to extend; to display; as, to deploy a column of troops into line of battle.