on-s - outg
- operation
- operation defensive in nature
- operation department
- Operation Desert Storm
- Operation Iraq Freedom
- operation is going according to plan
- operation losses
- operation of atomic powerstations
- operation of economy
- operation of market forces
- operation of the trusteeship system
- operation plan
- operation schedule
- operational
- operational activities
- operational data
- operational efficiency
- operational exchange rate
- operational forces
- operational planning
- operational post
- operational procedures
- operational program
- operational project
- operational readiness
- operational relationship
- operational requirements
- operational satellite
- operational service
- operational targets
- operational, executive and administrative personnel
- operationalize
- operations summary
- operative
- operative part
- operative part of a resolution
- operator
- OPEX
- opinio juris gentium
- opinion
