Oper - over
- oper
- operating
- operating agency
- operating agency code
- operating and maintenance costs
- operating and repair instruction
- operating authority
- operating base
- operating characteristic
- operating costs
- operating cycle
- operating force plan
- operating forces
- operating information line
- operating information system
- operating instruction(s)
- operating level
- operating level of supply
- operating location
- operating location, alert detachment
- operating location, antiaircraft
- operating log
- operating manual
- operating memorandum
- operating memorandum, personnel assignment
- operating memorandum, policy
- operating memorandum-information
- operating parameters list
- operating plan
- operating procedure
- operating program
- operating resources
- operating schedule
- operating system
- operating target
- operating [operational] characteristics
- operating [operational] control procedure
- operating [operational] empty weight
- operating [operational] strength
- operation
