oper - Over
- operate
- operating
- operating account
- operating assets
- operating budget
- operating capital
- operating cash flow
- operating cost
- operating costs
- operating costs analysis
- operating cycle
- operating deficit
- operating expenses
- operating free cash flow
- operating income
- operating leverage
- operating loss
- operating margin
- operating monopoly
- operating officer
- operating process
- operating profit
- operating ratio
- operating rules
- operating statement
- operating subsidy
- operating system
- operating system command
- operating system software
- operation
- operational
- operational audit
- operational cost accounting
- operational cost accounts
- operational cost centre
- operational costs
- operational efficiency
- operational marketing
- operational planning
- operational research