over - PEM
- over, short and damaged (report)
- over, short, and damaged report
- over-the-horizon
- over-the-horizon backscatter (radar)
- over-the-horizon detection system
- over-the-horizon detection, classification, and targeting (system)
- over-the-horizon detector
- over-the-horizon forward scatter (radar)
- over-the-horizon radar
- over-the-horizon targeting
- over-the-shoulder (bombing)
- overall documentation plan
- overall efficiency index
- overall height
- overall length
- overall level
- Overall NATO Command
- overall readiness estimate
- overall report
- overall test
- overall test set
- OVEREP
- overhaul
- overhaul and repair
- overhaul and repair instruction
- overhaul and repair manual
- overhaul cycle limit
- overhaul manual
- overhaul recurrent item
- overhaul refresher training
- overhaul removal item
- overhaul replacement factor
- overhead
- overhead cover
- overhead foxhole cover
- overhead manipulator
- overhead supply inventory
- overkill
- overland downlook radar
- overland flow research facility
