direct approach

alternating current-direct current (AC-DC) converter

direct action (DA)

direct approaches

direct commercial sales (DCS)

direct current

direct damage assessment

direct effect of blast wave

direct exchange (DX) (logistics)

direct fire range

direct fire support

direct fire weapon

direct force

direct hit

direct laying fire

direct laying position

direct liaison authority (DIRLAUTH)

direct maintenance support

direct military threat

direct superior

direct support (DS)

direct threat of aggression

direct weapon

direct-action fuse

direct-drive clutch

joint direct attack munition (JDAM)

voltage direct current (vdc)

direct laying

intersection, direct sighting

direct impingement starting system

direct support and service

direct vision block

direct-view optics (DVO)