initial operational capability (IOC)

interim operational capability (IOC)

intelligent orientation control (IOC)

initial operational test and evaluation (IOT&E)

full operational capability (FOC)

operational capability

designed operational capability

design operational capability

initial airhead

initial assault

initial assault landing

initial data

initial element

initial geodetic data

initial nuclear radiation

initial path sweeping

initial period of war

initial point (IP)

initial radiation

initial railway

initial sight setting

initial situation

initial training

initial velocity

initial-entry force

initial-entry training (IET)

Low-Rate Initial Production (LRIP)

pre-initial planning conference

target approach point; initial point (IP)

initial / boost phase of flight

initial round

initial bomb release line

initial enemy contact